2,3-Dibromo-9,10-dihydro-9,10-[1,2]benzenoanthracene CAS 52776-05-3

Purity 97%+In StockPharmaceutical Standards
CAS No.52776-05-3
Molecular FormulaC20H12Br2
Molecular Weight412.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3-Dibromo-9,10-dihydro-9,10-[1,2]benzenoanthracene CAS 52776-05-3 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 2,3-Dibromo-9,10-dihydro-9,10-[1,2]benzenoanthracene.

2,3-Dibromo-9,10-dihydro-9,10-[1,2]benzenoanthracene (CAS 52776-05-3) is a high-purity analytical reference standard with the molecular formula C20H12Br2 and a molecular weight of 412.12 g/mol.

Owing to bromine substitution, a polycyclic aromatic system, 2,3-Dibromo-9,10-dihydro-9,10-[1,2]benzenoanthracene is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 412.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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 FormulaC20H12Br2
Molecular Weight412.12 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
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Halogen ContentBr-containing

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