| gptkbp:instanceOf | gptkb:heterocyclic_compound 
 | 
                        
                            
                                | gptkbp:appearance | white to yellowish solid 
 | 
                        
                            
                                | gptkbp:aroma | fecal, flowery at low concentrations 
 | 
                        
                            
                                | gptkbp:biosynthesized_from | tryptophan 
 | 
                        
                            
                                | gptkbp:boilingPoint | 253–254 °C 
 | 
                        
                            
                                | gptkbp:CASNumber | 120-72-9 
 | 
                        
                            
                                | gptkbp:chemicalFormula | C8H7N 
 | 
                        
                            
                                | gptkbp:discoveredBy | Adolph Baeyer 
 | 
                        
                            
                                | gptkbp:discoveredIn | 1866 
 | 
                        
                            
                                | gptkbp:foundIn | gptkb:coal_tar human feces
 jasmine oil
 
 | 
                        
                            
                                | gptkbp:hasInChIKey | 1S/C8H7N/c1-2-4-7-6(3-1)5-9-8(7)10/h1-5,9-10H 
 | 
                        
                            
                                | gptkbp:hasSMILES | c1ccc2c(c1)cc[nH]2 
 | 
                        
                            
                                | gptkbp:IUPACName | 1H-indole 
 | 
                        
                            
                                | gptkbp:meltingPoint | 52–54 °C 
 | 
                        
                            
                                | gptkbp:molecularWeight | 117.15 g/mol 
 | 
                        
                            
                                | gptkbp:predecessor | gptkb:indole_alkaloids serotonin
 tryptophan
 
 | 
                        
                            
                                | gptkbp:riskFactor | irritant toxic in large amounts
 
 | 
                        
                            
                                | gptkbp:solubility | slightly soluble 
 | 
                        
                            
                                | gptkbp:solubility_in_ethanol | soluble 
 | 
                        
                            
                                | gptkbp:solubility_in_ether | soluble 
 | 
                        
                            
                                | gptkbp:structure | bicyclic, fused benzene and pyrrole ring 
 | 
                        
                            
                                | gptkbp:used_in | gptkb:perfume_industry chemical research
 pharmaceuticals
 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:JWH-250 gptkb:benzofuran
 gptkb:Tryptophan
 gptkb:Pirlindole
 
 | 
                        
                            
                                | gptkbp:bfsLayer | 7 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | indole 
 |