4-(Chloromethyl)benzo[d]oxazole-2-sulfonamide CAS 1803836-03-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1803836-03-4
Molecular FormulaC8H7ClN2O3S
Molecular Weight246.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Chloromethyl)benzo[d]oxazole-2-sulfonamide CAS 1803836-03-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 246.67 g/mol gives 4-(Chloromethyl)benzo[d]oxazole-2-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(Chloromethyl)benzo[d]oxazole-2-sulfonamide (CAS 1803836-03-4) is a high-purity analytical reference standard with the molecular formula C8H7ClN2O3S and a molecular weight of 246.67 g/mol.

4-(Chloromethyl)benzo[d]oxazole-2-sulfonamide (C8H7ClN2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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.

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 FormulaC8H7ClN2O3S
Molecular Weight246.67 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 methanol, ethanol, DMSO
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.)1995
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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