4-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-sulfonamide CAS 1806992-40-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1806992-40-4
Molecular FormulaC7H4BrF2N3O2S
Molecular Weight312.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-sulfonamide CAS 1806992-40-4 chemical structure

Description

The occurrence of 4-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-sulfonamide is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-sulfonamide (CAS 1806992-40-4), molecular formula C7H4BrF2N3O2S and molecular weight 312.09 g/mol, is a CATO reference standard with documented purity and traceability.

4-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-sulfonamide (C7H4BrF2N3O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. 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. 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 FormulaC7H4BrF2N3O2S
Molecular Weight312.09 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; 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 ContentF/Br-containing
Nitrogen Atoms3
Sulfur Atoms1

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