2-Methyl-5-sulfobenzoic acid CAS 89106-54-7

Purity 97%+In StockPharmaceutical Standards
CAS No.89106-54-7
Molecular FormulaC8H8O5S
Molecular Weight216.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyl-5-sulfobenzoic acid CAS 89106-54-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 216.21 g/mol gives 2-Methyl-5-sulfobenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Methyl-5-sulfobenzoic acid (CAS 89106-54-7) is a high-purity analytical reference standard with the molecular formula C8H8O5S and a molecular weight of 216.21 g/mol.

Structurally, 2-Methyl-5-sulfobenzoic acid (C8H8O5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 216.21 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures 2-Methyl-5-sulfobenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

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.)1982
Sulfur Atoms1

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