Fosfomycin Impurity 25 CAS CATO-C4X-131625

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-131625
Molecular FormulaC15H27Na2O15P
Molecular Weight524.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fosfomycin Impurity 25 CAS CATO-C4X-131625 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 25.

Fosfomycin Impurity 25 (CAS CATO-C4X-131625) is a certified pharmaceutical impurity reference standard with the molecular formula C15H27Na2O15P and a molecular weight of 524.32 g/mol.

Structurally, Fosfomycin Impurity 25 (C15H27Na2O15P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.5, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 524.32 g/mol, it falls into the moderately-high-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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC15H27Na2O15P
Molecular Weight524.32 g/mol
Purity>95%
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.5

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