(2S)-3-Mercapto-1,2-Propanediol CAS 120785-95-7

Purity 97%+In StockPharmaceutical Standards
CAS No.120785-95-7
Molecular FormulaC3H8O2S
Molecular Weight108.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2S)-3-Mercapto-1,2-Propanediol CAS 120785-95-7 chemical structure

Description

(2S)-3-Mercapto-1,2-Propanediol (CAS 120785-95-7), molecular formula C3H8O2S and molecular weight 108.16 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, (2S)-3-Mercapto-1,2-Propanediol is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 108.16 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 FormulaC3H8O2S
Molecular Weight108.16 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1991
Sulfur Atoms1

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Why CATO?