Allopurinol-Impurities | Pharmaffiliates

allopurinol

Allopurinol is a purine analog and it is a structural isomer of hypoxanthine. It is an inhibitor of the enzyme xanthine oxidase. Allopurinol is used to treat excess uric acid in the blood and gout. It is sold under the brand name Zyloprim. Reference standards of Allopurinol API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

PA STI 033020

4,6-Dihydroxypyrazolo[3,4-d]pyrimidine-13C,15N2


  • Catalogue No.:PA STI 033020

  • CAS :

    1217036-71-9

  • Molecular Formula : C413CH4N215N2O2

  • Molecular Weight : 155.09

PA 01 39011

Allopurinol - Impurity A (Freebase)


  • Catalogue No.:PA 01 39011

  • CAS :

    5334-31-6

  • Molecular Formula : C4H6N4O

  • Molecular Weight : 126.12

PA 01 0391000

Oxypurinol


  • Catalogue No.:PA 01 0391000

  • CAS :

    2465-59-0

  • Molecular Formula : C5H4N4O2

  • Molecular Weight : 152.11

PA 01 0390061

Allopurinol - Impurity F (Hydrate)


  • Catalogue No.:PA 01 0390061

  • CAS :

    10217-52-4

  • Molecular Formula : N2H4.xH20

  • Molecular Weight : NA

PA 01 0391001

(E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl Ester


  • Catalogue No.:PA 01 0391001

  • CAS :

    321571-07-7

  • Molecular Formula : C12H14N4O4

  • Molecular Weight : 278.26