Allopurinol Impurities

Allopurinol Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Allopurinol, pharmacopeial and non-pharmacopeial Allopurinol impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Allopurinol impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Allopurinol-related products are thoroughly characterized. Allopurinol products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

Allopurinol

SZ CAT No:	: SZ-A074001
CAS No	: 315-30-0
Mol.F.	: C5H4N4O
Mol.Wt.	: 136.1
Inv. Status	: In Stock

Allopurinol EP Impurity A (Sulfate)

SZ CAT No:	: SZ-A074002
CAS No	: 27511-79-1
Mol.F.	: 2(C4H6N4O) : H2O4S
Mol.Wt.	: 2(126.1) : 98.1
Inv. Status	: In Stock

Allopurinol EP Impurity B

SZ CAT No:	: SZ-A074003
CAS No	: 22407-20-1
Mol.F.	: C5H6N4O2
Mol.Wt.	: 154.1
Inv. Status	: In Stock

Allopurinol EP Impurity C

SZ CAT No:	: SZ-A074004
CAS No	: 1346604-13-4
Mol.F.	: C6H6N6O
Mol.Wt.	: 178.2
Inv. Status	: In Stock

Allopurinol EP Impurity D

SZ CAT No:	: SZ-A074005
CAS No	: 6994-25-8
Mol.F.	: C6H9N3O2
Mol.Wt.	: 155.2
Inv. Status	: In Stock

Allopurinol EP Impurity E

SZ CAT No:	: SZ-A074006
CAS No	: 31055-19-3
Mol.F.	: C7H9N3O3
Mol.Wt.	: 183.2
Inv. Status	: In Stock

Allopurinol EP Impurity F

SZ CAT No:	: SZ-A074007
CAS No	: 302-01-2
Mol.F.	: H4N2
Mol.Wt.	: 32.0
Inv. Status	: In Stock, 3-4 days for Dispatch

Allopurinol USP Related Compound F

SZ CAT No:	: SZ-A074011
CAS No	: 321571-07-7
Mol.F.	: C12H14N4O4
Mol.Wt.	: 278.3
Inv. Status	: In Stock

Allopurinol Impurity 1

SZ CAT No:	: SZ-A074010
CAS No	: NA
Mol.F.	: C8H8N6O2
Mol.Wt.	: 220.2
Inv. Status	: Custom Synthesis

Allopurinol Impurity 2

SZ CAT No:	: SZ-A074022
CAS No	: 147156-43-2
Mol.F.	: C5H6N4O2 : HCl
Mol.Wt.	: 154.1 : 36.5
Inv. Status	: Custom Synthesis

Allopurinol Nitrile Hydrochloride Impurity

SZ CAT No:	: SZ-A074020
CAS No	: 478081-97-9
Mol.F.	: C4H4N4 : HCl
Mol.Wt.	: 108.1 : 36.5
Inv. Status	: Custom Synthesis

Allopurinol Nitrile Impurity

SZ CAT No:	: SZ-A074008
CAS No	: 16617-46-2
Mol.F.	: C4H4N4
Mol.Wt.	: 108.1
Inv. Status	: Custom Synthesis

Allopurinol USP Impurity

SZ CAT No:	: SZ-A074009
CAS No	: NA
Mol.F.	: C12H14N4O4
Mol.Wt.	: 278.3
Inv. Status	: Custom Synthesis

Oxypurinol

SZ CAT No:	: SZ-A074023
CAS No	: 2465-59-0
Mol.F.	: C5H4N4O2
Mol.Wt.	: 152.1
Inv. Status	: Custom Synthesis

Stable Isotopes and Metabolites

Allopurinol D2

SZ CAT No:	: SZ-A074D01
CAS No	: 916979-34-5
Mol.F.	: C5H2D2N4O
Mol.Wt.	: 138.1
Inv. Status	: Custom Synthesis

Allopurinol-13C,15N2

SZ CAT No:	: SZ-A074D03
CAS No	: NA
Mol.F.	: C413CH4N215N2O
Mol.Wt.	: 139.1
Inv. Status	: Custom Synthesis

Oxipurinol 13C 15N2

SZ CAT No:	: SZ-A074D02
CAS No	: 1217036-71-9
Mol.F.	: C413CH4N215N2O2
Mol.Wt.	: 155.1
Inv. Status	: Custom Synthesis

Possible Nitroso Standards

Allopurinol Nitroso Impurity 1

SZ CAT No:	: SZ-A074012
CAS No	: NA
Mol.F.	: C5H3N5O2
Mol.Wt.	: 165.1
Inv. Status	: Inquire

Allopurinol Nitroso Impurity 2

SZ CAT No:	: SZ-A074021
CAS No	: NA
Mol.F.	: C5H3N5O2
Mol.Wt.	: 165.1
Inv. Status	: Inquire

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