| gptkbp:instanceOf | gptkb:heterocyclic_compound gptkb:chemical_compound
 gptkb:Ether
 
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                                | gptkbp:appearance | colorless liquid 
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                                | gptkbp:aroma | ether-like 
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                                | gptkbp:autoignitionTemperature | 321 °C 
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                                | gptkbp:boilingPoint | 66 °C 
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                                | gptkbp:CASNumber | 109-99-9 
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                                | gptkbp:chemicalFormula | C4H8O 
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                                | gptkbp:density | 0.889 g/cm³ 
 | 
                        
                            
                                | gptkbp:EC_number | 203-726-8 
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                                | gptkbp:explosive_limits | 2–12% (in air) 
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                                | gptkbp:flammability | highly flammable 
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                                | gptkbp:flashPoint | −14 °C 
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                                | gptkbp:GHS_signal_word | Danger 
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                                | gptkbp:hasLogP | 0.46 
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                                | gptkbp:IUPACName | gptkb:oxolane 
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                                | gptkbp:LD50 | 1650 mg/kg 
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                                | gptkbp:meltingPoint | −108.4 °C 
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                                | gptkbp:miscible_with | gptkb:water gptkb:chloroform
 gptkb:acetone
 ethanol
 benzene
 diethyl ether
 hexane
 
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                                | gptkbp:molecularWeight | 72.11 g/mol 
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                                | gptkbp:primaryUse | gptkb:solvent chemical intermediate
 precursor to polymers
 
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                                | gptkbp:producedBy | acid-catalyzed dehydration of 1,4-butanediol catalytic hydrogenation of furan
 
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                                | gptkbp:PubChem_CID | 8028 
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                                | gptkbp:refractiveIndex | 1.407 (20 °C) 
 | 
                        
                            
                                | gptkbp:relatedTo | gptkb:1,4-dioxane gptkb:furan
 
 | 
                        
                            
                                | gptkbp:riskFactor | irritant forms explosive peroxides
 
 | 
                        
                            
                                | gptkbp:solubility | miscible 
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                                | gptkbp:storage | store away from light and air 
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                                | gptkbp:structure | five-membered ring four carbon atoms and one oxygen atom
 
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                                | gptkbp:UNNumber | 2056 
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                                | gptkbp:used_in | gptkb:Grignard_reactions pharmaceutical industry
 polymerization
 adhesives
 coatings
 organolithium chemistry
 PVC production
 
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                                | gptkbp:vaporPressure | 162 mmHg (20 °C) 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Negishi_coupling gptkb:Furan
 
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                                | gptkbp:bfsLayer | 6 
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                                | https://www.w3.org/2000/01/rdf-schema#label | tetrahydrofuran 
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