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Piperidine

Names IUPAC namePiperidinePreferred IUPAC namePiperidineOther names HexahydropyridineAzacyclohexanePentamethyleneamineAzinaneIdentifiers CAS Number110-89-43D model (JSmol)Interactive imageChEBICHEBI:18049ChEMBLChEMBL15487ChemSpider7791ECHA InfoCard100.003.467EC Number203-813-0IUPHAR/BPS5477KEGGC01746PubChemCID8082RTECS numberTM3500000UNII67I85E138YUN number2401 CompTox Dashboard(EPA)DTXSID6021165InChIInChI=1S/C5H11N/c1-2-4-6-5-3-1/h6H,1-5H2Key: NQRYJNQNLNOLGT-UHFFFAOYSA-NInChI=1/C5H11N/c1-2-4-6-5-3-1/h6H,1-5H2InChI=1/C5H11N/c1-2-4-6-5-3-1/h6H,1-5H2Key: NQRYJNQNLNOLGT-UHFFFAOYAYSMILESC1CCNCC1Properties Chemical formulaC5H11NMolar mass85.150 g·mol Appearance Colorless liquid OdorSemen-like, fishy-ammoniacal, pungent Density0.862 g/mL Melting point−7 °C (19 °F; 266 K) Boiling point106 °C (223 °F; 379 K) Solubility in waterMiscible Acidity (pKa) 11.22 (protonated) Magnetic susceptibility (χ)−64.2·10 cm/mol Viscosity1.573 cP at 25 °C Hazards GHS labelling: PictogramsSignal wordDangerHazard statementsH225, H311, H314, H331Precautionary statementsP210, P233, P240, P241, P242, P243, P260, P264, P271, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P312, P321, P322, P361, P363, P370+P378, P403+P233, P403+P235, P405, P501NFPA 704 (fire diamond) 330Safety data sheet (SDS) MSDS1Legal statusBR:Class D1 (Drug precursors)Related compounds Related compoundsPyridinePyrrolidinePiperazineExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Yverify ( ?)

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