4-Benzylidene-1,3-diphenyl-1H-pyrazol-5(4H)-one CAS 36221-08-6
| CAS No. | 36221-08-6 |
| Molecular Formula | C22H16N2O |
| Molecular Weight | 324.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Benzylidene-1,3-diphenyl-1H-pyrazol-5(4H)-one.
4-Benzylidene-1,3-diphenyl-1H-pyrazol-5(4H)-one (CAS 36221-08-6) is a high-purity analytical reference standard with the molecular formula C22H16N2O and a molecular weight of 324.38 g/mol.
The molecular framework of 4-Benzylidene-1,3-diphenyl-1H-pyrazol-5(4H)-one (C22H16N2O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Benzylidene-1,3-diphenyl-1H-pyrazol-5(4H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H16N2O |
| Molecular Weight | 324.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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