2-Amino-4-methylbenzenesulfonic acid CAS 88-62-0

Purity 97%+In StockPharmaceutical Standards
CAS No.88-62-0
Molecular FormulaC7H9NO3S
Molecular Weight187.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Amino-4-methylbenzenesulfonic acid CAS 88-62-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 187.22 g/mol gives 2-Amino-4-methylbenzenesulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Amino-4-methylbenzenesulfonic acid (CAS 88-62-0), molecular formula C7H9NO3S and molecular weight 187.22 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H9NO3S, 2-Amino-4-methylbenzenesulfonic acid contains an amide group, 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 187.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

CATO manufactures 2-Amino-4-methylbenzenesulfonic 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 FormulaC7H9NO3S
Molecular Weight187.22 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms1
Sulfur Atoms1

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