Atracurium Impurity 28 CAS 57198-94-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.57198-94-4
Molecular FormulaC8H14O3
Molecular Weight158.19 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Atracurium Impurity 28 CAS 57198-94-4 chemical structure

Description

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Atracurium Impurity 28 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 158.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

CATO supplies Atracurium Impurity 28 (CAS 57198-94-4), a pharmacopoeial impurity reference standard (molecular formula C8H14O3, MW 158.19 g/mol) used for the identification and quantification of trace impurities in APIs.

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.

As a certified reference material (CRM), Atracurium Impurity 28 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.

Physical & Chemical Properties

Molecular FormulaC8H14O3
Molecular Weight158.19 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1973

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