2-Bromo-7-chlorobenzo[b]thiophene CAS 1782669-70-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1782669-70-8
Molecular FormulaC8H4BrClS
Molecular Weight247.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Bromo-7-chlorobenzo[b]thiophene CAS 1782669-70-8 chemical structure

Description

2-Bromo-7-chlorobenzo[b]thiophene (C8H4BrClS) contains sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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).

2-Bromo-7-chlorobenzo[b]thiophene (CAS 1782669-70-8) is a high-purity analytical reference standard with the molecular formula C8H4BrClS and a molecular weight of 247.54 g/mol.

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 FormulaC8H4BrClS
Molecular Weight247.54 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994
Halogen ContentCl/Br-containing
Sulfur Atoms1

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