7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid CAS 879896-63-6

Purity 97%+In StockPharmaceutical Standards
CAS No.879896-63-6
Molecular FormulaC7H5BrO4S
Molecular Weight265.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid CAS 879896-63-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 265.08 g/mol gives 7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid (CAS 879896-63-6), a certified reference material (molecular formula C7H5BrO4S, MW 265.08 g/mol) for analytical method development and quality control.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 265.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid 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 FormulaC7H5BrO4S
Molecular Weight265.08 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentBr-containing
Sulfur Atoms1

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