Methyl Isethionate CAS 81171-21-3

Purity 97%+In StockPharmaceutical Standards
CAS No.81171-21-3
Molecular FormulaC3H8O4S
Molecular Weight140.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl Isethionate CAS 81171-21-3 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 Methyl Isethionate.

Methyl Isethionate (CAS 81171-21-3) is a high-purity analytical reference standard with the molecular formula C3H8O4S and a molecular weight of 140.16 g/mol.

Owing to a sulfone group, a carboxylic acid group, an ether linkage, Methyl Isethionate is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 140.16 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 FormulaC3H8O4S
Molecular Weight140.16 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.)1980
Sulfur Atoms1

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