QUALITY CONTROL CHEMICALS INC.
STANDARD REFERENCE MATERIAL
Product Detail
Allopurinol EP Impurity E
Ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate
QCC Cat No.:QA121605
CAS No.:31055-19-3
Mol. Formula:C7H9N3O3
Mol. Weight:183.16
Warning:The form of the product salt may be different from the official website, please consult your local agent for details.
Related Products
Allopurinol Nitrile Impurity
QCC Cat No.: QA121631
CAS No.: 16617-46-2
Mol. Formula: C4H4N4
Mol. Weight: 108.1
Allopurinol Impurity 8
QCC Cat No.: QA121608
CAS No.: 5334-56-5
Mol. Formula: C6H6N4O
Mol. Weight: 150.14
Allopurinol EP Impurity F;Dihydralazine EP Impurity B
QCC Cat No.: QA121607
CAS No.: 302-01-2;7803-57-8 (Monohydrate);2644-70-4（HCl）
Mol. Formula: H4N2
Mol. Weight: 32.05
Allopurinol Related Compound F(Mixture of Z and E Isomers)
QCC Cat No.: QA121606
CAS No.: 321571-07-7
Mol. Formula: C12H14N4O4
Mol. Weight: 278.26
Allopurinol EP Impurity D
QCC Cat No.: QA121604
CAS No.: 6994-25-8
Mol. Formula: C6H9N3O2
Mol. Weight: 155.15
Allopurinol EP Impurity C
QCC Cat No.: QA121603
CAS No.: 1346604-13-4
Mol. Formula: C6H6N6O
Mol. Weight: 178.06031
Allopurinol EP Impurity B
QCC Cat No.: QA121602
CAS No.: 22407-20-1
Mol. Formula: C5H6N4O2
Mol. Weight: 154.13
Allopurinol EP Impurity A
QCC Cat No.: QA121601
CAS No.: 5334-31-6;27511-79-1(1/2H2SO4 salt)
Mol. Formula: C4H6N4O
Mol. Weight: 126.12
Allopurinol
QCC Cat No.: QA121600
CAS No.: 315-30-0
Mol. Formula: C5H4N4O
Mol. Weight: 136.11