4,5-Dichloro-2-[2-(4-chlorophenyl)-2-oxoethyl]-2,3-dihydropyridazin-3-one CAS 303987-71-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303987-71-5 |
| Molecular Formula | C12H7Cl3N2O2 |
| Molecular Weight | 317.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,5-Dichloro-2-[2-(4-chlorophenyl)-2-oxoethyl]-2,3-dihydropyridazin-3-one (CAS 303987-71-5) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C12H7Cl3N2O2. Molecular weight: 317.56 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H7Cl3N2O2 |
| Molecular Weight | 317.56 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 sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 3-(4-Bromo-3-(3-chloropropanoyl)phenyl)acrylic acid (CAS 1807411-20-6)
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- tert-Butyl (1S,4S,6R)-6-hydroxy-2-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 1099570-25-8)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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