(3Z)-3-{[5-(2,4-dichlorophenyl)furan-2-yl]methylidene}-1,3-dihydro-2-benzofuran-1-one CAS 338756-65-3

Purity 97%+In StockPharmaceutical Standards
CAS No.338756-65-3
Molecular FormulaC19H10Cl2O3
Molecular Weight357.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3Z)-3-{[5-(2,4-dichlorophenyl)furan-2-yl]methylidene}-1,3-dihydro-2-benzofuran-1-one CAS 338756-65-3 chemical structure

Description

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.

(3Z)-3-{[5-(2,4-dichlorophenyl)furan-2-yl]methylidene}-1,3-dihydro-2-benzofuran-1-one (CAS 338756-65-3) is a high-purity analytical reference standard with the molecular formula C19H10Cl2O3 and a molecular weight of 357.19 g/mol.

Based on its molecular formula C19H10Cl2O3, (3Z)-3-{[5-(2,4-dichlorophenyl)furan-2-yl]methylidene}-1,3-dihydro-2-benzofuran-1-one contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 357.19 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.

As a certified reference material (CRM), (3Z)-3-{[5-(2,4-dichlorophenyl)furan-2-yl]methylidene}-1,3-dihydro-2-benzofuran-1-one 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 FormulaC19H10Cl2O3
Molecular Weight357.19 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing

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