Disodium hydrogen phosphite CAS 13708-85-5

Purity 97%+In StockPharmaceutical Standards
CAS No.13708-85-5
Molecular FormulaH3O3P
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Disodium hydrogen phosphite CAS 13708-85-5 chemical structure

Description

The occurrence of Disodium hydrogen phosphite is closely related to a phosphonate group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Disodium hydrogen phosphite (CAS 13708-85-5), a certified reference material (molecular formula H3O3PNa, MW 104.98 g/mol) for analytical method development and quality control.

Owing to a phosphonate group, Disodium hydrogen phosphite is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 104.98 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaH3O3P Na
Molecular Weight104.98 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.)1960

Related Disodium Standards

Recommended Standards

Why CATO?