6-Bromo-2-(m-tolyl)-4H-chromen-4-one CAS 339588-78-2

Purity 97%+In StockPharmaceutical Standards
CAS No.339588-78-2
Molecular FormulaC16H11BrO2
Molecular Weight315.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Bromo-2-(m-tolyl)-4H-chromen-4-one CAS 339588-78-2 chemical structure

Description

The occurrence of 6-Bromo-2-(m-tolyl)-4H-chromen-4-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

6-Bromo-2-(m-tolyl)-4H-chromen-4-one (CAS 339588-78-2), molecular formula C16H11BrO2 and molecular weight 315.16 g/mol, is a CATO reference standard with documented purity and traceability.

6-Bromo-2-(m-tolyl)-4H-chromen-4-one (C16H11BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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 FormulaC16H11BrO2
Molecular Weight315.16 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentBr-containing

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