5-Hydroxy-2-methoxybenzenesulfonamide CAS 82020-61-9

Purity 97%+In StockPharmaceutical Standards
CAS No.82020-61-9
Molecular FormulaC7H9NO4S
Molecular Weight203.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Hydroxy-2-methoxybenzenesulfonamide CAS 82020-61-9 chemical structure

Description

The occurrence of 5-Hydroxy-2-methoxybenzenesulfonamide 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.

5-Hydroxy-2-methoxybenzenesulfonamide (CAS 82020-61-9) is a high-purity analytical reference standard with the molecular formula C7H9NO4S and a molecular weight of 203.22 g/mol.

5-Hydroxy-2-methoxybenzenesulfonamide (C7H9NO4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 5-Hydroxy-2-methoxybenzenesulfonamide 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 FormulaC7H9NO4S
Molecular Weight203.22 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.)1980
Nitrogen Atoms1
Sulfur Atoms1

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