2-Hydroxy-5-(methylsulfonamido)benzenesulfonamide CAS 1243458-99-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1243458-99-2
Molecular FormulaC7H10N2O5S2
Molecular Weight266.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-5-(methylsulfonamido)benzenesulfonamide CAS 1243458-99-2 chemical structure

Description

The occurrence of 2-Hydroxy-5-(methylsulfonamido)benzenesulfonamide is closely related to an amide group, 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-(methylsulfonamido)benzenesulfonamide (CAS 1243458-99-2), molecular formula C7H10N2O5S2 and molecular weight 266.29 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-Hydroxy-5-(methylsulfonamido)benzenesulfonamide (C7H10N2O5S2) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H10N2O5S2
Molecular Weight266.29 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.)1990
Nitrogen Atoms2
Sulfur Atoms2

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