Fosfomycin Impurity 81 CAS 734473-80-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.734473-80-4
Molecular FormulaC5H11O4P
Molecular Weight166.11 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fosfomycin Impurity 81 CAS 734473-80-4 chemical structure

Description

Based on its molecular formula C5H11O4P, Fosfomycin Impurity 81 contains a carbohydrate-derived structure, a phosphate ester group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 166.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

Fosfomycin Impurity 81 (CAS 734473-80-4) is a certified pharmaceutical impurity reference standard with the molecular formula C5H11O4P and a molecular weight of 166.11 g/mol.

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), Fosfomycin Impurity 81 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 FormulaC5H11O4P
Molecular Weight166.11 g/mol
Purity97%+
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
CAS Registry Year (est.)1986

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