2,8-Dichlorodibenzo-p-Dioxin CAS 38964-22-6

Purity >95%In StockPharmaceutical Standards
CAS No.38964-22-6
Molecular FormulaC12H6Cl2O2
Molecular Weight253.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,8-Dichlorodibenzo-p-Dioxin CAS 38964-22-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 253.08 g/mol gives 2,8-Dichlorodibenzo-p-Dioxin distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,8-Dichlorodibenzo-p-Dioxin (CAS 38964-22-6) is a high-purity analytical reference standard with the molecular formula C12H6Cl2O2 and a molecular weight of 253.08 g/mol.

Based on its molecular formula C12H6Cl2O2, 2,8-Dichlorodibenzo-p-Dioxin contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC12H6Cl2O2
Molecular Weight253.08 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Halogen ContentCl-containing

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