Anodyne

CP, CPM
Chlorphenamine
Salts
[]
Chlorphenamine hydrochloride
Generated by the Chemistry Development Kit (http://github.com/cdk)
Chlorphenamine maleate
Generated by the Chemistry Development Kit (http://github.com/cdk)
Molecular structure via molpic based on CDK
Physical properties
[]
274.79 g/mol [1]
AppearanceOILY LIQUID [1]
Melting point130 - 135 °C [1]
Boiling point142 °C [1]
SolubilityUV max absorption (water): 261 nm (E=5760), Solubility in mg/ml at 25 °C: Ethanol 330; chloroform 240; water 160; methanol 130; pH of a 2% aqueous solution about 5 /Maleate/ [1]
3.4 [1]
Structural Identifiers
[]
C16H19ClN2 [1]
3-(4-chlorophenyl)-N,N-dimethyl-3-pyridin-2-ylpropan-1-amine [1]
CN(C)CCC(C1=CC=C(C=C1)Cl)C2=CC=CC=N2 [1]
InChI=1S/C16H19ClN2/c1-19(2)12-10-15(16-5-3-4-11-18-16)13-6-8-14(17)9-7-13/h3-9,11,15H,10,12H2,1-2H3 [1]
InChIKeySOYKEARSMXGVTM-UHFFFAOYSA-N [1]
Pharmacokinetics[]
Elimination half-life13.9 – 43.4 hours

Chlorphenamine

Chlorphenamine (also known as Chlorpheniramine, chlorpheniramine, Chlorphenamine, 132-22-9, Chlorophenylpyridamine, Haynon, Clorfeniramina, Allergican, Allergisan or Clorfenamina) is a substance of the phenethylamine class.

Chemistry

Salts []

Chlorphenamine is typically found in the form of its hydrochloride and maleate salts.

 []

Chlorphenamine is a racemic mixture of the

Legal status []

  • Australia: Chlorphenamine is a S3 substance.
  • United Kingdom: Chlorphenamine is a P substance.
  • United States: Chlorphenamine is a OTC substance.

See also []

External links []

References []

  1. National Center for Biotechnology Information. PubChem Compound Summary for CID 2725, Chlorpheniramine. Accessed January 13, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/2725

  2. U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Chlorphenamine. UNII: 3U6IO1965U. Global Substance Registration System. Accessed January 13, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/3U6IO1965U