5,6-diphenyl-2,3-dihydropyridazin-3-one CAS 2166-34-9
| CAS No. | 2166-34-9 |
| Molecular Formula | C16H12N2O |
| Molecular Weight | 248.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H12N2O, 5,6-diphenyl-2,3-dihydropyridazin-3-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5,6-diphenyl-2,3-dihydropyridazin-3-one (CAS 2166-34-9), molecular formula C16H12N2O and molecular weight 248.28 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H12N2O |
| Molecular Weight | 248.28 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
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- 4-(1H-Imidazo[4,5-b]phenazin-2-yl)-2-methoxyphenol (CAS 114991-90-1)
- Cyclopropyl(3-fluoro-5-(trifluoromethyl)phenyl)methanamine (CAS 1270397-37-9)
- 4-(4-Chlorobenzoyl)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 70692-01-2)
- 4-(Chloromethyl)-4-methylnonane (CAS 1484319-25-6)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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