| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:chemical_compound
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:abbreviation
                                    
                                 | 
                                
                                    
                                        
                                            
                                            PC
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:API
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:PUG-REST
                                        
                                         
                                    
                                        
                                            gptkb:PUG-SOAP
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:compounds
                                    
                                 | 
                                
                                    
                                        
                                            
                                            over 100 million
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:contains
                                    
                                 | 
                                
                                    
                                        
                                            
                                            chemical structures
                                        
                                        
                                         
                                    
                                        
                                            
                                            patent information
                                        
                                        
                                         
                                    
                                        
                                            
                                            chemical properties
                                        
                                        
                                         
                                    
                                        
                                            
                                            chemical compounds
                                        
                                        
                                         
                                    
                                        
                                            
                                            safety information
                                        
                                        
                                         
                                    
                                        
                                            
                                            literature references
                                        
                                        
                                         
                                    
                                        
                                            
                                            toxicity data
                                        
                                        
                                         
                                    
                                        
                                            
                                            bioassay data
                                        
                                        
                                         
                                    
                                        
                                            
                                            biological activities
                                        
                                        
                                         
                                    
                                        
                                            
                                            chemical vendors
                                        
                                        
                                         
                                    
                                        
                                            
                                            substances
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:format
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:SDF
                                        
                                         
                                    
                                        
                                            gptkb:JSON
                                        
                                         
                                    
                                        
                                            
                                            XML
                                        
                                        
                                         
                                    
                                        
                                            
                                            CSV
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:freeFrom
                                    
                                 | 
                                
                                    
                                        
                                            
                                            true
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:hasPart
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:PubChem_3D_Viewer
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_BioAssay
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Blog
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Classification
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Compound
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Data_Contributors
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Data_Source
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Data_Sources
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Documentation
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Download_Service
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_FAQs
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_FTP_Service
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Help_Center
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Laboratory_Chemical_Safety_Summary
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Literature
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_News
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Patent
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Periodic_Table
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_REST_API
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Search
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Sketcher
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Substance
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Training_Resources
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Tutorials
                                        
                                         
                                    
                                        
                                            gptkb:PubChem_Vendor
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Access
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Analysis
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Archive
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Attribution
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Citation
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Cross-referencing
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Curation
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Download
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Export
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Import
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Integration
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Interoperability
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Licensing
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Linking
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Mapping
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Policies
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Privacy
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Quality
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Release
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Retrieval
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Search
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Security
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Sharing
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Standards
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Submission
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Updates
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Use
                                        
                                        
                                         
                                    
                                        
                                            
                                            PubChem Data Visualization
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:language
                                    
                                 | 
                                
                                    
                                        
                                            
                                            English
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:launched
                                    
                                 | 
                                
                                    
                                        
                                            
                                            2004
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:maintainedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:National_Center_for_Biotechnology_Information
                                        
                                         
                                    
                                        
                                            gptkb:NCBI
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:numberOfBioassays
                                    
                                 | 
                                
                                    
                                        
                                            
                                            over 1 million
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:numberOfSubstances
                                    
                                 | 
                                
                                    
                                        
                                            
                                            over 250 million
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:partOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:National_Institutes_of_Health
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:recognizedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:CID
                                        
                                         
                                    
                                        
                                            gptkb:SID
                                        
                                         
                                    
                                        
                                            gptkb:AID
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:researchers
                                        
                                         
                                    
                                        
                                            gptkb:scientist
                                        
                                         
                                    
                                        
                                            gptkb:chemical_industry
                                        
                                         
                                    
                                        
                                            
                                            students
                                        
                                        
                                         
                                    
                                        
                                            
                                            pharmaceutical industry
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedFor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            biomedical research
                                        
                                        
                                         
                                    
                                        
                                            
                                            drug discovery
                                        
                                        
                                         
                                    
                                        
                                            
                                            chemical education
                                        
                                        
                                         
                                    
                                        
                                            
                                            chemical informatics
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:website
                                    
                                 | 
                                
                                    
                                        
                                            
                                            https://pubchem.ncbi.nlm.nih.gov/
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:E-utilities
                                        
                                         
                                    
                                        
                                            gptkb:National_Center_for_Biotechnology_Information
                                        
                                         
                                    
                                        
                                            gptkb:SciFinder
                                        
                                         
                                    
                                        
                                            gptkb:The_National_Library_of_Medicine
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            6
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            PubChem
                                        
                                        
                                         
                                    
                                 |