1-[(3-Fluorophenyl)methyl]-4-[3-(trifluoromethyl)phenyl]-4,5-dihydro-1H-1,2,4-triazol-5-one CAS 343373-39-7

Purity 97%+In StockPharmaceutical Standards
CAS No.343373-39-7
Molecular FormulaC16H11F4N3O
Molecular Weight337.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-[(3-Fluorophenyl)methyl]-4-[3-(trifluoromethyl)phenyl]-4,5-dihydro-1H-1,2,4-triazol-5-one CAS 343373-39-7 chemical structure

Description

CATO supplies 1-[(3-Fluorophenyl)methyl]-4-[3-(trifluoromethyl)phenyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 343373-39-7), a certified reference material (molecular formula C16H11F4N3O, MW 337.27 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 1-[(3-Fluorophenyl)methyl]-4-[3-(trifluoromethyl)phenyl]-4,5-dihydro-1H-1,2,4-triazol-5-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 337.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC16H11F4N3O
Molecular Weight337.27 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms3

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