7-Methoxy-3-(1-phenyl-1H-pyrazol-4-yl)-2-(trifluoromethyl)-4H-chromen-4-one CAS 51412-22-7

Purity 97%+In StockPharmaceutical Standards
CAS No.51412-22-7
Molecular FormulaC20H13F3N2O3
Molecular Weight386.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methoxy-3-(1-phenyl-1H-pyrazol-4-yl)-2-(trifluoromethyl)-4H-chromen-4-one CAS 51412-22-7 chemical structure

Description

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.

7-Methoxy-3-(1-phenyl-1H-pyrazol-4-yl)-2-(trifluoromethyl)-4H-chromen-4-one (CAS 51412-22-7) is a high-purity analytical reference standard with the molecular formula C20H13F3N2O3 and a molecular weight of 386.32 g/mol.

7-Methoxy-3-(1-phenyl-1H-pyrazol-4-yl)-2-(trifluoromethyl)-4H-chromen-4-one (C20H13F3N2O3) contains a steroid 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).

As a certified reference material (CRM), 7-Methoxy-3-(1-phenyl-1H-pyrazol-4-yl)-2-(trifluoromethyl)-4H-chromen-4-one 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 FormulaC20H13F3N2O3
Molecular Weight386.32 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
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.)1971
Halogen ContentF-containing
Nitrogen Atoms2

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