(R)-(+)-3,3-Dibromo-1,1-bi-2-naphthol CAS 149821-06-7

Purity 97%+In StockPharmaceutical Standards
CAS No.149821-06-7
Molecular FormulaC20H12Br2O2
Molecular Weight444.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(R)-(+)-3,3-Dibromo-1,1-bi-2-naphthol CAS 149821-06-7 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (R)-(+)-3,3-Dibromo-1,1-bi-2-naphthol.

(R)-(+)-3,3-Dibromo-1,1-bi-2-naphthol (CAS 149821-06-7), molecular formula C20H12Br2O2 and molecular weight 444.12 g/mol, is a CATO reference standard with documented purity and traceability.

(R)-(+)-3,3-Dibromo-1,1-bi-2-naphthol (C20H12Br2O2) contains a steroid core, a hydroxyl group, an ether linkage, 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 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 FormulaC20H12Br2O2
Molecular Weight444.12 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.)1999
Halogen ContentBr-containing

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Why CATO?