Allopurinol Impurities

  • Allopurinol Related Compound B

  • Impurity: Allopurinol Related Compound B
  • CAS No: N/A
  • Chemical Name: 5-(formylamino)-1H-pyrazole-4-carboxamide

  • Allopurinol Related Compound C

  • Impurity: Allopurinol Related Compound C
  • CAS No: N/A
  • Chemical Name: 5-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide

  • Allopurinol Related Compound D

  • Impurity: Allopurinol Related Compound D
  • CAS No: N/A
  • Chemical Name: ethyl 5-amino-1H-pyrazole-4-carboxylate

  • Allopurinol Related Compound E

  • Impurity: Allopurinol Related Compound E
  • CAS No: N/A
  • Chemical Name: ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate

  • Allopurinol Related Compound F

  • Impurity: Allopurinol Related Compound F
  • CAS No: N/A
  • Chemical Name: (ethyl-(E/Z)-3-(2-carbethoxy-2-cyanoethenyl)amino-1H-pyrazole-4-carboxylate)