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Pharmaceutical Reference Standards

Allopurinol

Allopurinol

CAT No: HTS-A-011
CAS No : 315-30-0
Mol. Formula: C5H4N4O
Mol. Weight: 136.11
Inv. Status: custom synthesis

Allopurinol EP Impurity A

Allopurinol EP Impurity A

CAT No: HTS-A-011A
CAS No : 27511-79-1
Mol. Formula: 2:C4H6N4O . H2O4S
Mol. Weight: 2:126.12 . 98.07
Inv. Status: in stock

Allopurinol EP Impurity B

Allopurinol EP Impurity B

CAT No: HTS-A-011B
CAS No : 22407-20-1
Mol. Formula: C5H6N4O2
Mol. Weight: 154.13
Inv. Status: custom synthesis

Allopurinol EP Impurity C

Allopurinol EP Impurity C

CAT No: HTS-A-011C
CAS No : 1346604-13-4
Mol. Formula: C6H6N6O
Mol. Weight: 178.16
Inv. Status: custom synthesis

Allopurinol EP Impurity D

Allopurinol EP Impurity D

CAT No: HTS-A-011D
CAS No : 6994-25-8
Mol. Formula: C6H9N3O2
Mol. Weight: 155.16
Inv. Status: custom synthesis

Allopurinol EP Impurity E

Allopurinol EP Impurity E

CAT No: HTS-A-011E
CAS No : 31055-19-3
Mol. Formula: C7H9N3O3
Mol. Weight: 183.17
Inv. Status: custom synthesis

Allopurinol EP Impurity F

Allopurinol EP Impurity F

CAT No: HTS-A-011HA
CAS No : 302-01-2
Mol. Formula: H4N2
Mol. Weight: 32.05
Inv. Status: in stock

Allopurinol Nitrile Impurity

Allopurinol Nitrile Impurity

CAT No: HTS-A-011AN
CAS No : 16617-46-2
Mol. Formula: C4H4N4
Mol. Weight: 108.1
Inv. Status: custom synthesis

Allopurinol USP Related Compound F

Allopurinol USP Related Compound F

CAT No: HTS-A-011RF
CAS No : NA
Mol. Formula: C13H15N3O4
Mol. Weight: 277.28
Inv. Status: custom synthesis