2H-1$l^{6},2,3-benzothiadiazine-1,1-dione CAS 21639-39-4

Purity 97%+In StockPharmaceutical Standards
CAS No.21639-39-4
Molecular FormulaC7H6N2O2S
Molecular Weight182.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2H-1$l^{6},2,3-benzothiadiazine-1,1-dione CAS 21639-39-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 182.20 g/mol gives 2H-1$l^{6},2,3-benzothiadiazine-1,1-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2H-1$l^{6},2,3-benzothiadiazine-1,1-dione (CAS 21639-39-4), a certified reference material (molecular formula C7H6N2O2S, MW 182.20 g/mol) for analytical method development and quality control.

2H-1$l^{6},2,3-benzothiadiazine-1,1-dione (C7H6N2O2S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

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 FormulaC7H6N2O2S
Molecular Weight182.20 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms2
Sulfur Atoms1

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