2-(3,4-Dichlorophenyl)-2-oxoacetaldehyde CAS 38923-36-3

Purity 97%+In StockPharmaceutical Standards
CAS No.38923-36-3
Molecular FormulaC8H4Cl2O2
Molecular Weight203.02 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(3,4-Dichlorophenyl)-2-oxoacetaldehyde CAS 38923-36-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 203.02 g/mol gives 2-(3,4-Dichlorophenyl)-2-oxoacetaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(3,4-Dichlorophenyl)-2-oxoacetaldehyde (CAS 38923-36-3) is a high-purity analytical reference standard with the molecular formula C8H4Cl2O2 and a molecular weight of 203.02 g/mol.

Structurally, 2-(3,4-Dichlorophenyl)-2-oxoacetaldehyde (C8H4Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 203.02 g/mol, it falls into the medium-molecular-weight range. 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 FormulaC8H4Cl2O2
Molecular Weight203.02 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Halogen ContentCl-containing

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