Methylarsonic acid sodium CAS 2163-80-6

Purity 97%+In StockPharmaceutical Standards
CAS No.2163-80-6
Molecular FormulaCH4AsO3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methylarsonic acid sodium CAS 2163-80-6 chemical structure

Description

Methylarsonic acid sodium (CAS 2163-80-6), molecular formula CH4AsO3Na and molecular weight 161.95 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Methylarsonic acid sodium (CH4AsO3Na) is characterized by an organic framework. 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.

As a certified reference material (CRM), Methylarsonic acid sodium 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 FormulaCH4AsO3 Na
Molecular Weight161.95 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)0.0
CAS Registry Year (est.)1957

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Why CATO?