Glutathione Impurity 7 CAS 3773-07-7

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.3773-07-7
Molecular FormulaC10H17N3O9S
Molecular Weight355.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Glutathione Impurity 7 CAS 3773-07-7 chemical structure

Description

As a certified reference material (CRM), Glutathione Impurity 7 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

CATO supplies Glutathione Impurity 7 (CAS 3773-07-7), a pharmacopoeial impurity reference standard (molecular formula C10H17N3O9S, MW 355.32 g/mol) used for the identification and quantification of trace impurities in APIs.

Glutathione Impurity 7 (C10H17N3O9S) contains a carbohydrate-derived structure, an amide group, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

Physical & Chemical Properties

Molecular FormulaC10H17N3O9S
Molecular Weight355.32 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms3
Sulfur Atoms1

Related Glutathione Standards

Recommended Standards

Why CATO?