2-Methylbenzenesulfonic acid Hydrate CAS 1914148-59-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1914148-59-6
Molecular FormulaC7H8O3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methylbenzenesulfonic acid Hydrate CAS 1914148-59-6 chemical structure

Description

2-Methylbenzenesulfonic acid Hydrate (CAS 1914148-59-6) is a high-purity analytical reference standard with the molecular formula C7H8O3SH2O and a molecular weight of 190.21 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 2-Methylbenzenesulfonic acid Hydrate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC7H8O3S H2O
Molecular Weight190.21 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1995
Sulfur Atoms1

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