2-Hydroxy-5-methanesulfonylbenzoic acid CAS 68029-77-6

Purity 97%+In StockPharmaceutical Standards
CAS No.68029-77-6
Molecular FormulaC8H8O5S
Molecular Weight216.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-5-methanesulfonylbenzoic acid CAS 68029-77-6 chemical structure

Description

The occurrence of 2-Hydroxy-5-methanesulfonylbenzoic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Hydroxy-5-methanesulfonylbenzoic acid (CAS 68029-77-6), molecular formula C8H8O5S and molecular weight 216.21 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H8O5S, 2-Hydroxy-5-methanesulfonylbenzoic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 216.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), 2-Hydroxy-5-methanesulfonylbenzoic acid 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 FormulaC8H8O5S
Molecular Weight216.21 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976
Sulfur Atoms1

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