(4E)-3-Methyl-4-[(3-phenoxyphenyl)methylidene]-1-phenyl-4,5-dihydro-1H-pyrazol-5-one CAS 297142-64-4

Purity 97%+In StockPharmaceutical Standards
CAS No.297142-64-4
Molecular FormulaC23H18N2O2
Molecular Weight354.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4E)-3-Methyl-4-[(3-phenoxyphenyl)methylidene]-1-phenyl-4,5-dihydro-1H-pyrazol-5-one CAS 297142-64-4 chemical structure

Description

(4E)-3-Methyl-4-[(3-phenoxyphenyl)methylidene]-1-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 297142-64-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C23H18N2O2. Molecular weight: 354.40 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC23H18N2O2
Molecular Weight354.40 g/mol
AppearancePale yellow to yellow crystalline powder
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
Degree of Unsaturation (DBE)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2

Recommended Standards

Why CATO?