CATO supplies Azathioprine EP Impurity E Sodium Salt (CAS 35681-68-6), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H4N3O3 Na. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
Molecular Formula
C4H4N3O3 Na
Molecular Weight
165.08 g/mol
Appearance
Off-white to pale yellow crystalline powder. (faint amine-like odor)
Purity
>80%
Storage
Store at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)
Soluble in methanol, ethanol, DMSO, water
Stability
May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening