Capsaicin
Names
Pronunciation /kæpˈseɪsɪn/ or /kæpˈseɪəsɪn/
Preferred IUPAC name (6E)-N-[(4-Hydroxy-3-methoxyphenyl)methyl]-8-methylnon-6-enamide
Other names (E)-N-(4-Hydroxy-3-methoxybenzyl)-8-methylnon-6-enamide
8-Methyl-N-vanillyl-trans-6-nonenamide
trans-8-Methyl-N-vanillylnon-6-enamide
(E)-Capsaicin
Capsicine
Capsicin
CPS
Identifiers
CAS Number
3D model (JSmol)
Beilstein Reference 2816484
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.006.337
EC Number
  • 206-969-8
IUPHAR/BPS
KEGG
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C18H27NO3/c1-14(2)8-6-4-5-7-9-18(21)19-13-15-10-11-16(20)17(12-15)22-3/h6,8,10-12,14,20H,4-5,7,9,13H2,1-3H3,(H,19,21)/b8-6+ YKey: YKPUWZUDDOIDPM-SOFGYWHQSA-N Y
  • InChI=1/C18H27NO3/c1-14(2)8-6-4-5-7-9-18(21)19-13-15-10-11-16(20)17(12-15)22-3/h6,8,10-12,14,20H,4-5,7,9,13H2,1-3H3,(H,19,21)/b8-6+Key: YKPUWZUDDOIDPM-SOFGYWHQBQ
SMILES
  • O=C(NCc1cc(OC)c(O)cc1)CCCC/C=C/C(C)C
Properties
Chemical formula C18H27NO3
Molar mass 305.418 g·mol−1
Appearance Crystalline white powder[1]
Odor Highly pungent
Melting point 62 to 65 °C (144 to 149 °F; 335 to 338 K)
Boiling point 210 to 220 °C (410 to 428 °F; 483 to 493 K) 0.01 Torr
Solubility in water 0.0013 g/100 mL
Solubility
Vapor pressure 1.32×10−8 mm Hg at 25 °C[2]
UV-vis (λmax) 280 nm
Structure
Crystal structure Monoclinic
Pharmacology
Content from Wikipedia, licensed under CC BY-SA 4.0 · snapshot 2026-03-01 · wi.kifa.st v2026-03