Fosfomycin Impurity 57 CAS CATO-C4X-131657

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-131657
Molecular FormulaC5H13O5P
Molecular Weight184.13 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fosfomycin Impurity 57 CAS CATO-C4X-131657 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Fosfomycin Impurity 57.

CATO supplies Fosfomycin Impurity 57 (CAS CATO-C4X-131657), a pharmacopoeial impurity reference standard (molecular formula C5H13O5P, MW 184.13 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Fosfomycin Impurity 57 (C5H13O5P) contains a carbohydrate-derived structure, a phosphate ester group. The molecule exhibits a degree of unsaturation (DBE) of -0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 184.13 g/mol, it falls into the medium-molecular-weight range.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Fosfomycin Impurity 57 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 FormulaC5H13O5P
Molecular Weight184.13 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-0.5

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