CAS Number: 22407-20-1

Alternate CAS#:

Chemical Name: Allopurinol EP Impurity B

Molecular Formula: C5H6N4O2

Molecular Weight: 154.13

CAS Number: N/A

Alternate CAS#:

Chemical Name: Allopurinol Impurity ZY2

Molecular Formula: C10H14N2O3

Molecular Weight: 210.23

CAS Number: N/A

Alternate CAS#:

Chemical Name: Allopurinol Impurity ZY3

Molecular Formula: C8H10N2O3

Molecular Weight: 182.18

CAS Number: 321571-07-7

Alternate CAS#:

Chemical Name: Allopurinol Impurity F (Mixture of Z and E Isomers)

Molecular Formula: C12H14N4O4

Molecular Weight: 278.27

CAS Number: 6994-25-8

Alternate CAS#:

Chemical Name: Allopurinol EP Impurity D

Molecular Formula: C6H9N3O2

Molecular Weight: 155.16

CAS Number: 2465-59-0

Alternate CAS#:

Chemical Name: Allopurinol Impurity 2 (Oxypurinol)

Molecular Formula: C5H4N4O2

Molecular Weight: 152.11

CAS Number: N/A

Alternate CAS#:

Chemical Name: Allopurinol Impurity 1

Molecular Formula: C8H8N6O2

Molecular Weight: 220.19

CAS Number: 1346604-13-4

Alternate CAS#:

Chemical Name: Allopurinol EP Impurity C

Molecular Formula: C6H6N6O

Molecular Weight: 178.16

CAS Number: 5334-31-6

Alternate CAS#:

Chemical Name: Allopurinol EP Impurity A

Molecular Formula: C4H6N4O

Molecular Weight: 126.12

CAS Number:

Alternate CAS#:

Chemical Name: Allopurinol Impurity ZY1

Molecular Formula: C9H12N2O3

Molecular Weight: 196.21

CAS Number: 315-30-0

Alternate CAS#:

Chemical Name: Allopurinol

Molecular Formula: C5H4N4O

Molecular Weight: 136.11

CAS Number: 2464-18-8

Alternate CAS#:

Chemical Name: Allocholic Acid

Molecular Formula: C24H40O5

Molecular Weight: 408.58