Ethyl 5-methyl-3-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxylate CAS 159693-08-0

Purity 97%+In StockPharmaceutical Standards
CAS No.159693-08-0
Molecular FormulaC14H12F3NO3
Molecular Weight299.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-methyl-3-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxylate CAS 159693-08-0 chemical structure

Description

The occurrence of Ethyl 5-methyl-3-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 5-methyl-3-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxylate (CAS 159693-08-0), molecular formula C14H12F3NO3 and molecular weight 299.25 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Ethyl 5-methyl-3-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxylate (C14H12F3NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures Ethyl 5-methyl-3-(4-(trifluoromethyl)phenyl)isoxazole-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 FormulaC14H12F3NO3
Molecular Weight299.25 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, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2002
Halogen ContentF-containing
Nitrogen Atoms1

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