5-Bromo-2,2-dimethylbenzo[b]thiophen-3(2H)-one CAS 1064254-57-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1064254-57-4
Molecular FormulaC10H9BrOS
Molecular Weight257.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromo-2,2-dimethylbenzo[b]thiophen-3(2H)-one CAS 1064254-57-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 257.15 g/mol gives 5-Bromo-2,2-dimethylbenzo[b]thiophen-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Bromo-2,2-dimethylbenzo[b]thiophen-3(2H)-one (CAS 1064254-57-4), molecular formula C10H9BrOS and molecular weight 257.15 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C10H9BrOS, 5-Bromo-2,2-dimethylbenzo[b]thiophen-3(2H)-one contains sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 257.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 5-Bromo-2,2-dimethylbenzo[b]thiophen-3(2H)-one 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 FormulaC10H9BrOS
Molecular Weight257.15 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, 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.)1988
Halogen ContentBr-containing
Sulfur Atoms1

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