Trisodium hydrogen diphosphate CAS 14691-80-6

Purity 97%+In StockPharmaceutical Standards
CAS No.14691-80-6
Molecular FormulaHO7P2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Trisodium hydrogen diphosphate CAS 14691-80-6 chemical structure

Description

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.

Trisodium hydrogen diphosphate (CAS 14691-80-6), molecular formula HO7P2Na and molecular weight 197.94 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a phosphate ester group, Trisodium hydrogen diphosphate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 197.94 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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.

Physical & Chemical Properties

Molecular FormulaHO7P2 3*Na
Molecular Weight197.94 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.)1961

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Why CATO?