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Topic summary

Piperidine

Piperidine
Names IUPAC name
Piperidine
Preferred IUPAC name
Piperidine
Other names
Hexahydropyridine
Azacyclohexane
Pentamethyleneamine
Azinane
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.467EC Number
  • 203-813-0
KEGG
RTECS number
  • TM3500000
UNII
UN number2401
  • InChI=1S/C5H11N/c1-2-4-6-5-3-1/h6H,1-5H2
    Key: NQRYJNQNLNOLGT-UHFFFAOYSA-N
  • InChI=1/C5H11N/c1-2-4-6-5-3-1/h6H,1-5H2
  • InChI=1/C5H11N/c1-2-4-6-5-3-1/h6H,1-5H2
    Key: NQRYJNQNLNOLGT-UHFFFAOYAY
  • C1CCNCC1
Properties C5H11NMolar 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) Miscible Acidity (pKa) 11.22 (protonated) −64.2·10 cm/mol Viscosity1.573 cP at 25 °C Hazards GHS labelling: DangerH225, H311, H314, H331P210, 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)
3
3
0
Safety data sheet (SDS) MSDS1Legal status
Related compounds
Related compounds
Pyridine
Pyrrolidine
Piperazine

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Piperidine is an organic compound with the molecular formula (CH2)5NH. This heterocyclicamine consists of a six-membered ring containing five methylene bridges (–CH2–) and one amine bridge (–NH–). It is a colorless liquid with an odor described as objectionable, humansperm-like, typical of amines. The name comes from the genus name Piper, which is the Latin word for pepper. Although piperidine is a common organic compound, it is best known as a representative structure element within many pharmaceuticals and alkaloids, such as naturally-occurring solenopsins.

Wikipedia source