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Home/Compounds/Pharmaceutical Intermediate/5-formylamino-1H-pyrazole-4-carboxamide
C5H6N4O2
154.13 g/mol
Pharmaceutical Intermediate

Allopurinol Impurity B

CAS22407-20-1
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate

Allopurinol Impurity B is a reference standard used in the quality control of allopurinol, a pharmaceutical intermediate. It is chemically identified as This compound.

reference standard for allopurinol impurity testingpharmaceutical manufacturing quality control

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Identifiers
IUPAC Name

5-formamido-1H-pyrazole-4-carboxamide

InChIKey

MKVXRGIJTKYXPR-UHFFFAOYSA-N

SMILES

C1=NNC(=C1C(=O)N)NC=O

Synonyms (12)
  • 1H-Pyrazole-4-carboxamide, 3-(formylamino)-; Pyrazole-4-carboxamide, 3-formamido- (8CI); 42W88; Ph Eur Allopurinol Impurity B; USP Allopurinol Related Compound B
  • ALLOPURINOL IMPURITY B (EP IMPURITY)
  • Allopurinol EP Impurity B
  • Allopurinol Impurity B
  • Allopurinol impurity B CRS