2,4-Diphenyl-1,2-dihydro-3H-pyrazol-3-one CAS 400075-06-1
| CAS No. | 400075-06-1 |
| Molecular Formula | C15H12N2O |
| Molecular Weight | 236.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,4-Diphenyl-1,2-dihydro-3H-pyrazol-3-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.
2,4-Diphenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 400075-06-1), molecular formula C15H12N2O and molecular weight 236.27 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 2,4-Diphenyl-1,2-dihydro-3H-pyrazol-3-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 236.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H12N2O |
| Molecular Weight | 236.27 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Diphenyl Standards
- 1,3-Diphenyl-1H-pyrazol-5-ol (CAS 114138-49-7)
- 1,3-Diphenyl-1H-pyrazol-4-ol (CAS 1202029-92-2)
- 1,5-Diphenyl-1H-pyrazol-3(2H)-one (CAS 13370-06-4)
- 1,3-Diphenyl-1H-pyrazol-5(4H)-one (CAS 4845-49-2)
- 1,4-Diphenyl-1H-1,2,3-triazol-5-amine (CAS 29704-63-0)
- 2,5-Diphenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 6632-05-9)
- 3,4-Diphenyl-5H-furan-2-one (CAS 5635-16-5)
- 3,5-Diphenyl-4H-1,2,4-triazol-4-amine (CAS 3049-45-4)
Recommended Standards
- 2-(Tetrahydro-2H-pyran-4-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-3-carboxylic acid (CAS 2416673-92-0)
- 2-(P-tolyl)phthalazin-1(2h)-one (CAS 919868-22-7)
- 2,6-Bis((2-hydroxyethyl)amino)-4-methylnicotinonitrile (CAS 38841-88-2)
- 2-(p-Tolyl)-1H-indene-1,3(2H)-dione (CAS 7561-48-0)
- 1-[4-(1H-1,2,4-triazol-1-yl)phenyl]ethanone (CAS 25700-04-3)
- 4-(3-(Trifluoromethyl)phenyl)butan-2-amine (CAS 73839-94-8)
- Methyl 5-(4-chlorobenzoyl)-2-imino-2,3-dihydrothiazole-4-carboxylate (CAS 941868-44-6)
- 2,4-Dichloro-1,6-naphthyridin-5(6H)-one (CAS 1402972-79-5)
- 2-(azetidin-1-yl)ethanol (CAS 67896-18-8)
- 2-Cyclopentyl-2-(4-methoxyphenyl)acetonitrile (CAS 955125-92-5)
- 2-(Pyridin-4-yl)thiazole (CAS 53911-40-3)
- 1-(4-Methoxyphenyl)-1-phenylethan-1-aminehydrochloride (CAS 1189717-77-8)
- 7-(2-(4-Fluorophenoxy)ethoxy)-4-hydroxyquinoline-3-carboxylic acid (CAS 78105-15-4)
- Urotensin II-Related Peptide (human, mouse, rat) (CAS 342878-90-4)
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