6-(2,3,5-Trichloro-4-methylphenyl)pyridazin-3(2H)-one CAS 68261-95-0
| CAS No. | 68261-95-0 |
| Molecular Formula | C11H7Cl3N2O |
| Molecular Weight | 289.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H7Cl3N2O, 6-(2,3,5-Trichloro-4-methylphenyl)pyridazin-3(2H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 289.55 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).
6-(2,3,5-Trichloro-4-methylphenyl)pyridazin-3(2H)-one (CAS 68261-95-0), molecular formula C11H7Cl3N2O and molecular weight 289.55 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 | C11H7Cl3N2O |
| Molecular Weight | 289.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 4,5-Dichloro-2-(3-chloro-4-methylphenyl)-2,3-dihydropyridazin-3-one (CAS 937630-10-9)
- 6-Chloro-N2-(3,4-dichlorophenyl)pyrimidine-2,4-diamine (CAS 7249-30-1)
- 2,6-Diamino-3-(2,3,5-trichlorophenyl)-pyrazine (CAS 212778-82-0)
- 2-(3,4-Dichlorophenoxy)ethane-1-sulfonyl chloride (CAS 1018271-39-0)
- 1-(4-Fluorobenzyl)-6-mercapto-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 1204298-15-6)
- 4-Amino-2,2-dimethylbutanenitrile (CAS 1198163-62-0)
- 5-(Benzyloxy)-1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-indole (CAS 151387-71-2)
- 4-Octylbenzene-1,3-diol (CAS 6565-70-4)
- 3-Bromo-4-(2-propynyloxy)benzaldehyde (CAS 428487-30-3)
- 3-(Methylamino)-4-nitro-N-(3-(trifluoromethyl)phenyl)-1H-pyrazole-1-carboxamide (CAS 318517-36-1)
- Bedaquiline Impurity 62 (CAS CATO-C4X-116762)
- 1-Cyclobutylpropan-1-ol (CAS 1380582-94-4)
- Ethyl 4-formyl-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-3-carboxylate (CAS 2138085-66-0)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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