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Substance Name: Pemirolast potassium [USAN:JAN]
RN: 100299-08-9
UNII: 497A17OUUE
InChIKey: NMMVKSMGBDRONO-UHFFFAOYSA-N

Classification Codes

  • Anti-Allergic
  • Drug / Therapeutic Agent
  • Inhibitor (Mediator Release)
  • Reproductive Effect

Molecular Formula

  • C10-H7-N6-O.K

Molecular Weight

  • 266.304
 
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Names and Synonyms

Name of Substance

  • Pemirolast potassium salt
  • Pemirolast potassium [USAN:JAN]

Synonyms

  • 4H-Pyrido(1,2-a)pyrimidin-4-one, 9-methyl-3-(1H-tetrazol-5-yl)-, potassium salt
  • 9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido(1,2-a)pyrimidin-4-one, potassium salt
  • Alamast
  • BMY 26517
  • BMY-26517
  • CCRIS 3562
  • Pemilaston
  • Pemirolast potassium
  • TBX
  • UNII-497A17OUUE

Systematic Names

  • 4H-Pyrido(1,2-a)pyrimidin-4-one, 9-methyl-3-(1H-tetrazol-5-yl)-, potassium salt
  • 9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido(1,2-a)pyrimidin-4-one potassium salt

Registry Numbers

CAS Registry Number

  • 100299-08-9

FDA UNII

  • 497A17OUUE

Related Registry Number

  • 69372-19-6 (Parent)

System Generated Number

  • 0100299089

Molecular Formulas

Molecular Formula

  • C10-H7-N6-O.K

Molecular Formula Fragments

  • C10-H7-N6-O
  • COMPONENT
  • K

Structure Descriptors

InChI

1S/C10H7N6O.K/c1-6-3-2-4-16-9(6)11-5-7(10(16)17)8-12-14-15-13-8;/h2-5H,1H3;/q-1;+1

InChIKey

NMMVKSMGBDRONO-UHFFFAOYSA-N

Smiles

n12c(c(ccc2)C)ncc(c1=O)c1nnn[n-]1.[K+]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 oral > 6gm/kg (6000mg/kg)   Drugs in Japan Vol. -, Pg. 1259, 1995.
mouse LD50 intraperitoneal 511mg/kg (511mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 23, Pg. 682, 1992.
mouse LD50 intravenous 220mg/kg (220mg/kg)   Japanese Kokai Tokyo Koho Patents. Vol. #95-69895,
mouse LD50 oral 1185mg/kg (1185mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 23, Pg. 682, 1992.
mouse LD50 subcutaneous 543mg/kg (543mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 23, Pg. 682, 1992.
rat LD50 intravenous 372mg/kg (372mg/kg)   Japanese Kokai Tokyo Koho Patents. Vol. #95-69895,
rat LD50 oral 687mg/kg (687mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 23, Pg. 682, 1992.
rat LD50 subcutaneous 430mg/kg (430mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 23, Pg. 682, 1992.