[(2R,3R,4R)-3-(4-chlorobenzoyl)oxy-4-fluoro-4-methyl-5-oxooxolan-2-yl]methyl 4-chlorobenzoate CAS 1294481-79-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1294481-79-0
Molecular FormulaC20H15Cl2FO6
Molecular Weight441.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[(2R,3R,4R)-3-(4-chlorobenzoyl)oxy-4-fluoro-4-methyl-5-oxooxolan-2-yl]methyl 4-chlorobenzoate CAS 1294481-79-0 chemical structure

Description

As a certified reference material (CRM), [(2R,3R,4R)-3-(4-chlorobenzoyl)oxy-4-fluoro-4-methyl-5-oxooxolan-2-yl]methyl 4-chlorobenzoate 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.

[(2R,3R,4R)-3-(4-chlorobenzoyl)oxy-4-fluoro-4-methyl-5-oxooxolan-2-yl]methyl 4-chlorobenzoate (CAS 1294481-79-0) is a high-purity analytical reference standard with the molecular formula C20H15Cl2FO6 and a molecular weight of 441.23 g/mol.

[(2R,3R,4R)-3-(4-chlorobenzoyl)oxy-4-fluoro-4-methyl-5-oxooxolan-2-yl]methyl 4-chlorobenzoate (C20H15Cl2FO6) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

Physical & Chemical Properties

Molecular FormulaC20H15Cl2FO6
Molecular Weight441.23 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF/Cl-containing

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