Fosfomycin Impurity 65 CAS 15205-62-6

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.15205-62-6
Molecular FormulaC12H27O3P
Molecular Weight250.31 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fosfomycin Impurity 65 CAS 15205-62-6 chemical structure

Description

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.

CATO supplies Fosfomycin Impurity 65 (CAS 15205-62-6), a pharmacopoeial impurity reference standard (molecular formula C12H27O3P, MW 250.31 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, Fosfomycin Impurity 65 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 250.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), Fosfomycin Impurity 65 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 FormulaC12H27O3P
Molecular Weight250.31 g/mol
Purity>95%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-0.5
CAS Registry Year (est.)1961

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