Fosfomycin Impurity 21 CAS CATO-C4X-131621

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-131621
Molecular FormulaC3H7O4P
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fosfomycin Impurity 21 CAS CATO-C4X-131621 chemical structure

Description

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.

Fosfomycin Impurity 21 (CAS CATO-C4X-131621) is a certified pharmaceutical impurity reference standard with the molecular formula C3H7O4PC4H11NO3 and a molecular weight of 259.19 g/mol.

Structurally, Fosfomycin Impurity 21 (C3H7O4PC4H11NO3) contains a carbohydrate-derived structure, an amide group, 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 259.19 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures Fosfomycin Impurity 21 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC3H7O4P C4H11NO3
Molecular Weight259.19 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-0.5
Nitrogen Atoms1

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