7-Fluoro-4-(4-fluorophenyl)-2-[4-(trifluoromethyl)phenyl]-1,2-dihydrophthalazin-1-one CAS 339009-72-2

Purity 97%+In StockPharmaceutical Standards
CAS No.339009-72-2
Molecular FormulaC21H11F5N2O
Molecular Weight402.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Fluoro-4-(4-fluorophenyl)-2-[4-(trifluoromethyl)phenyl]-1,2-dihydrophthalazin-1-one CAS 339009-72-2 chemical structure

Description

As a certified reference material (CRM), 7-Fluoro-4-(4-fluorophenyl)-2-[4-(trifluoromethyl)phenyl]-1,2-dihydrophthalazin-1-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.

7-Fluoro-4-(4-fluorophenyl)-2-[4-(trifluoromethyl)phenyl]-1,2-dihydrophthalazin-1-one (CAS 339009-72-2), molecular formula C21H11F5N2O and molecular weight 402.32 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 7-Fluoro-4-(4-fluorophenyl)-2-[4-(trifluoromethyl)phenyl]-1,2-dihydrophthalazin-1-one (C21H11F5N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 402.32 g/mol, it falls into the moderately-high-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC21H11F5N2O
Molecular Weight402.32 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, 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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms2

Related Fluoro Standards

Recommended Standards

Why CATO?