Methyl 4-({[(4E)-5-oxo-1-[4-(trifluoromethoxy)phenyl]-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)benzoate CAS 338403-26-2

Purity 97%+In StockPharmaceutical Standards
CAS No.338403-26-2
Molecular FormulaC20H13F6N3O4
Molecular Weight473.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 4-({[(4E)-5-oxo-1-[4-(trifluoromethoxy)phenyl]-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)benzoate CAS 338403-26-2 chemical structure

Description

Methyl 4-({[(4E)-5-oxo-1-[4-(trifluoromethoxy)phenyl]-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)benzoate (C20H13F6N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO supplies Methyl 4-({[(4E)-5-oxo-1-[4-(trifluoromethoxy)phenyl]-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)benzoate (CAS 338403-26-2), a certified reference material (molecular formula C20H13F6N3O4, MW 473.33 g/mol) for analytical method development and quality control.

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.

As a certified reference material (CRM), Methyl 4-({[(4E)-5-oxo-1-[4-(trifluoromethoxy)phenyl]-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)benzoate 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 FormulaC20H13F6N3O4
Molecular Weight473.33 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms3

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