5-Chlorobenzo[c][1,2,5]thiadiazole-4-sulfonamide CAS 113950-69-9

Purity 97%+In StockPharmaceutical Standards
CAS No.113950-69-9
Molecular FormulaC6H4ClN3O2S2
Molecular Weight249.70 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chlorobenzo[c][1,2,5]thiadiazole-4-sulfonamide CAS 113950-69-9 chemical structure

Description

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 supplies 5-Chlorobenzo[c][1,2,5]thiadiazole-4-sulfonamide (CAS 113950-69-9), a certified reference material (molecular formula C6H4ClN3O2S2, MW 249.70 g/mol) for analytical method development and quality control.

Based on its molecular formula C6H4ClN3O2S2, 5-Chlorobenzo[c][1,2,5]thiadiazole-4-sulfonamide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 249.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 5-Chlorobenzo[c][1,2,5]thiadiazole-4-sulfonamide 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 FormulaC6H4ClN3O2S2
Molecular Weight249.70 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms2

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