2-(2-(4-Chlorophenyl)-2-oxoethyl)-3-methylnaphthalene-1,4-dione CAS 329234-64-2

Purity 97%+In StockPharmaceutical Standards
CAS No.329234-64-2
Molecular FormulaC19H13ClO3
Molecular Weight324.76 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(2-(4-Chlorophenyl)-2-oxoethyl)-3-methylnaphthalene-1,4-dione CAS 329234-64-2 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-(2-(4-Chlorophenyl)-2-oxoethyl)-3-methylnaphthalene-1,4-dione.

2-(2-(4-Chlorophenyl)-2-oxoethyl)-3-methylnaphthalene-1,4-dione (CAS 329234-64-2) is a high-purity analytical reference standard with the molecular formula C19H13ClO3 and a molecular weight of 324.76 g/mol.

2-(2-(4-Chlorophenyl)-2-oxoethyl)-3-methylnaphthalene-1,4-dione (C19H13ClO3) contains a steroid core, a hydroxyl group, an ether linkage, chlorine 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 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.

As a certified reference material (CRM), 2-(2-(4-Chlorophenyl)-2-oxoethyl)-3-methylnaphthalene-1,4-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC19H13ClO3
Molecular Weight324.76 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing

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