Pharmaceutical Impurity Standards & Reference Standards

Browse our full catalog of pharmaceutical impurities, reference materials, and research chemicals.

All Products
All 2,841
Please Enquire
ALLOPURINOL

Allopurinol EP Impurity C

CAT No.-
CAS No.1346604-13-4
Mol. F.C6H6N6O
Mol. W.178.16
View
Please Enquire
ALLOPURINOL

Allopurinol Impurity D

CAT No.-
CAS No.6994-25-8
Mol. F.C6H9N3O2
Mol. W.155.16
View
Please Enquire
ALLOPURINOL

Allopurinol Impurity E

CAT No.-
CAS No.31055-19-3
Mol. F.C7H9N3O3
Mol. W.183.17
View
Please Enquire
ALLOPURINOL

Allopurinol Impurity F (Mixture of Z and EIsomers)

CAT No.-
CAS No.321571-07-7
Mol. F.C12H14N4O4
Mol. W.278.27
View
Please Enquire
ALLOPURINOL

Allopurinol-13C2-15N

CAT No.-
CAS No.315-30-0 (non-labelled)
Mol. F.13C315N C2H4N3O
Mol. W.140.08
View
Please Enquire
ALLOPURINOL

Allopurinol Impurity 1

CAT No.-
CAS No.-
Mol. F.C8H8N6O2
Mol. W.220.19
View
Please Enquire
ALLOSAMIDIN

Allosamidin

CAT No.-
CAS No.103782-08-7
Mol. F.C25H42N4O14
Mol. W.622.63
View
Please Enquire
ALLOSAMIDIN

Allosamidin-d6

CAT No.-
CAS No.103782-08-7 (non-labelled)
Mol. F.C25H36D6N4O14
Mol. W.628.66
View
Please Enquire
ALLURA RED AC

Allura Red AC-d3

CAT No.-
CAS No.-
Mol. F.C18H11N2Na2O8S2D3
Mol. W.499.45
View
Please Enquire
ALLURA RED AC

Allura Red AC Disodium Salt

CAT No.-
CAS No.25956-17-6
Mol. F.C18H14N2O8S2. 2Na
Mol. W.450.44 2 22.99
View