Sodium 3-chloro-4-methylbenzenesulfonate CAS 5138-91-0

Purity 97%+In StockPharmaceutical Standards
CAS No.5138-91-0
Molecular FormulaC7H6ClO3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sodium 3-chloro-4-methylbenzenesulfonate CAS 5138-91-0 chemical structure

Description

The occurrence of Sodium 3-chloro-4-methylbenzenesulfonate is closely related to a salt form, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Sodium 3-chloro-4-methylbenzenesulfonate (CAS 5138-91-0) is a high-purity analytical reference standard with the molecular formula C7H6ClO3SNa and a molecular weight of 228.62 g/mol.

Sodium 3-chloro-4-methylbenzenesulfonate (C7H6ClO3SNa) contains a salt form, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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), Sodium 3-chloro-4-methylbenzenesulfonate 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 FormulaC7H6ClO3S Na
Molecular Weight228.62 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Sulfur Atoms1

Related Sodium Standards

Recommended Standards

Why CATO?