2-Hydroxy-?4-?methylbenzenesulfonic acid ammonium salt CAS 79093-71-3

Purity >95%In StockPharmaceutical Standards
CAS No.79093-71-3
Molecular FormulaC7H7O4S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-?4-?methylbenzenesulfonic acid ammonium salt CAS 79093-71-3 chemical structure

Description

The occurrence of 2-Hydroxy-?4-?methylbenzenesulfonic acid ammonium salt is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Hydroxy-?4-?methylbenzenesulfonic acid ammonium salt (CAS 79093-71-3), molecular formula C7H7O4SH4N and molecular weight 205.23 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H7O4SH4N, 2-Hydroxy-?4-?methylbenzenesulfonic acid ammonium salt contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.23 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.

As a certified reference material (CRM), 2-Hydroxy-?4-?methylbenzenesulfonic acid ammonium salt 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 FormulaC7H7O4S H4N
Molecular Weight205.23 g/mol
Purity>95%
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1979
Nitrogen Atoms1
Sulfur Atoms1

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