3-(4-Methoxyphenyl)-5-[(2,4,5-trichlorophenoxy)methyl]-1,2-oxazole CAS 478066-45-4

Purity 97%+In StockPharmaceutical Standards
CAS No.478066-45-4
Molecular FormulaC17H12Cl3NO3
Molecular Weight384.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Methoxyphenyl)-5-[(2,4,5-trichlorophenoxy)methyl]-1,2-oxazole CAS 478066-45-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 384.64 g/mol gives 3-(4-Methoxyphenyl)-5-[(2,4,5-trichlorophenoxy)methyl]-1,2-oxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-(4-Methoxyphenyl)-5-[(2,4,5-trichlorophenoxy)methyl]-1,2-oxazole (CAS 478066-45-4), molecular formula C17H12Cl3NO3 and molecular weight 384.64 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-(4-Methoxyphenyl)-5-[(2,4,5-trichlorophenoxy)methyl]-1,2-oxazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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 FormulaC17H12Cl3NO3
Molecular Weight384.64 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1

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