Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000 CAS 26837-42-3

Purity 97%+In StockPharmaceutical Standards
CAS No.26837-42-3
Molecular FormulaC2H3KO4S
Molecular Weight162.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000 CAS 26837-42-3 chemical structure

Description

Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000 (CAS 26837-42-3), molecular formula C2H3KO4S and molecular weight 162.21 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, a carboxylic acid group, an ether linkage, Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.21 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.

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 FormulaC2H3KO4S
Molecular Weight162.21 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)1.5
CAS Registry Year (est.)1964
Sulfur Atoms1

Recommended Standards

Why CATO?