Allopurinol EP Impurity A Hemisulfate CAS 27511-79-1

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.27511-79-1
Molecular Formula2*C4H6N4O H2O4S
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Allopurinol EP Impurity A Hemisulfate CAS 27511-79-1 chemical structure

Description

CATO supplies Allopurinol EP Impurity A Hemisulfate (CAS 27511-79-1), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: 2*C4H6N4O H2O4S. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular Formula2*C4H6N4O H2O4S
Molecular Weight224.19 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1964
Nitrogen Atoms4
Sulfur Atoms1

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