3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione CAS 113683-19-5

Purity 97%+In StockPharmaceutical Standards
CAS No.113683-19-5
Molecular FormulaC11H7BrO3
Molecular Weight267.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione CAS 113683-19-5 chemical structure

Description

The occurrence of 3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione (CAS 113683-19-5), molecular formula C11H7BrO3 and molecular weight 267.08 g/mol, is a CATO reference standard with documented purity and traceability.

3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione (C11H7BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, 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. 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.

CATO manufactures 3-Bromo-5-hydroxy-2-methylnaphthalene-1,4-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC11H7BrO3
Molecular Weight267.08 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentBr-containing

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