Methyl 6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate CAS 341966-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.341966-20-9
Molecular FormulaC19H17F3N2O5
Molecular Weight410.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate CAS 341966-20-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 410.34 g/mol gives Methyl 6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Methyl 6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate (CAS 341966-20-9), molecular formula C19H17F3N2O5 and molecular weight 410.34 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Methyl 6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate (C19H17F3N2O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate 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 FormulaC19H17F3N2O5
Molecular Weight410.34 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms2

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