Ethyl 5-[(E)-({[(4-chlorophenyl)methoxy]amino}methylidene)amino]-3-{2-[3-(trifluoromethyl)benzoyloxy]ethoxy}-1,2-oxazole-4-carboxylate CAS 303997-17-3

Purity 97%+In StockPharmaceutical Standards
CAS No.303997-17-3
Molecular FormulaC24H21ClF3N3O7
Molecular Weight555.89 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-[(E)-({[(4-chlorophenyl)methoxy]amino}methylidene)amino]-3-{2-[3-(trifluoromethyl)benzoyloxy]ethoxy}-1,2-oxazole-4-carboxylate CAS 303997-17-3 chemical structure

Description

The occurrence of Ethyl 5-[(E)-({[(4-chlorophenyl)methoxy]amino}methylidene)amino]-3-{2-[3-(trifluoromethyl)benzoyloxy]ethoxy}-1,2-oxazole-4-carboxylate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 5-[(E)-({[(4-chlorophenyl)methoxy]amino}methylidene)amino]-3-{2-[3-(trifluoromethyl)benzoyloxy]ethoxy}-1,2-oxazole-4-carboxylate (CAS 303997-17-3), molecular formula C24H21ClF3N3O7 and molecular weight 555.89 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Ethyl 5-[(E)-({[(4-chlorophenyl)methoxy]amino}methylidene)amino]-3-{2-[3-(trifluoromethyl)benzoyloxy]ethoxy}-1,2-oxazole-4-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 555.89 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.

CATO manufactures Ethyl 5-[(E)-({[(4-chlorophenyl)methoxy]amino}methylidene)amino]-3-{2-[3-(trifluoromethyl)benzoyloxy]ethoxy}-1,2-oxazole-4-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC24H21ClF3N3O7
Molecular Weight555.89 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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 ContentF/Cl-containing
Nitrogen Atoms3

Recommended Standards

Why CATO?