Sodium phosphate monobasic, AR CAS 7558-80-7

Purity 97%+In StockPharmaceutical Standards
CAS No.7558-80-7
Molecular FormulaH2O4P
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sodium phosphate monobasic, AR CAS 7558-80-7 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 Sodium phosphate monobasic, AR.

Sodium phosphate monobasic, AR (CAS 7558-80-7), molecular formula H2O4PNa and molecular weight 119.98 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Sodium phosphate monobasic, AR (H2O4PNa) is characterized by a phosphate ester group. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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 FormulaH2O4P Na
Molecular Weight119.98 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959

Recommended Standards

Why CATO?