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Substance Name: Ketotifen [INN:BAN]
RN: 34580-13-7
UNII: X49220T18G
InChIKey: ZCVMWBYGMWKGHF-UHFFFAOYSA-N

Note

  • A cycloheptathiophene blocker of histamine H1 receptors and release of inflammatory mediators. It has been proposed for the treatment of asthma, rhinitis, skin allergies, and anaphylaxis.

Molecular Formula

  • C19-H19-N-O-S

Molecular Weight

  • 309.4311
 

Classification Codes

  • Anti-Allergic Agents
  • Antipruritics
  • Antiviral (COVID-19)
  • Dermatologic Agents
  • Drug / Therapeutic Agent
  • Histamine Agents
  • Histamine Antagonists
  • Histamine H1 Antagonists
  • Neurotransmitter Agents

Names and Synonyms

Name of Substance

  • Ketotifen
  • Ketotifen [INN:BAN]

MeSH Heading

  • Ketotifen

Synonyms

  • 4,9-Dihydro-4-(1-methyl-4-piperidinylidene)-10H-benzo(4,5)cyclohepta(1,2-b)thiophen-10-one
  • BRN 3983897
  • EINECS 252-099-7
  • HC 20-511
  • HSDB 7283
  • Ketotifen
  • Ketotifene
  • Ketotifene [INN-French]
  • Ketotifeno
  • Ketotifeno [INN-Spanish]
  • Ketotifenum
  • Ketotifenum [INN-Latin]
  • UNII-X49220T18G

Systematic Names

  • 10H-Benzo(4,5)cyclohepta(1,2-b)thiophen-10-one, 4,9-dihydro-4-(1-methyl-4-piperidinylidene)-
  • Ketotifen

Registry Numbers

CAS Registry Number

  • 34580-13-7

FDA UNII

  • X49220T18G

Other Registry Number

  • 116655-74-4

System Generated Number

  • 0034580137

Structure Descriptors

InChI

InChI=1S/C19H19NOS/c1-20-9-6-13(7-10-20)18-15-5-3-2-4-14(15)12-17(21)19-16(18)8-11-22-19/h2-5,8,11H,6-7,9-10,12H2,1H3

InChIKey

ZCVMWBYGMWKGHF-UHFFFAOYSA-N

Smiles

CN1CCC(=C2c3ccccc3CC(=O)c4sccc24)CC1

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 108mg/kg (108mg/kg)   Journal of Medicinal Chemistry. Vol. 30, Pg. 13, 1987.
mouse LD50 oral 179mg/kg (179mg/kg)   Journal of Medicinal Chemistry. Vol. 30, Pg. 13, 1987.