4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene CAS 431043-59-3

Purity 97%+In StockPharmaceutical Standards
CAS No.431043-59-3
Molecular FormulaC24H18Br2Cl2O2
Molecular Weight569.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene CAS 431043-59-3 chemical structure

Description

The occurrence of 4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene is closely related to a steroid core, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene (CAS 431043-59-3), molecular formula C24H18Br2Cl2O2 and molecular weight 569.11 g/mol, is a CATO reference standard with documented purity and traceability.

4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene (C24H18Br2Cl2O2) contains a steroid core, a hydroxyl group, an ether linkage, chlorine/bromine substitution. 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 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene 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 FormulaC24H18Br2Cl2O2
Molecular Weight569.11 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, 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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl/Br-containing

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