6,7-Dichloro-2,4-bis(4-chlorophenyl)phthalazin-1(2H)-one CAS 672951-09-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 672951-09-6 |
| Molecular Formula | C20H10Cl4N2O |
| Molecular Weight | 436.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,7-Dichloro-2,4-bis(4-chlorophenyl)phthalazin-1(2H)-one (CAS 672951-09-6) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C20H10Cl4N2O. Molecular weight: 436.12 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H10Cl4N2O |
| Molecular Weight | 436.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Ethylenediamine tetramethylenephosphonic Acid (CAS 1429-50-1)
- [N-[α-[2-(Piperidinoacetamido)phenyl]benzylidene]glycinato]nickel (CAS 847654-17-5)
- N,N'-Diethyl-N'-(4-nitrophenyl)-N-phenylurea (CAS 24827-78-9)
- 3-(1H-Benzo[d][1,2,3]triazol-1-yl)-N'-(thiophen-2-ylmethylene)propanehydrazide (CAS 478310-48-4)
- Magnesium bis(monoperoxyphthalate) hexahydrate (CAS 84665-66-7)
- 1-Bromo-2-chlorobutane (CAS 108200-18-6)
- Cyclopropyl(2,4-dichloropyridin-3-yl)methanone (CAS 1246350-01-5)
- Goserelin (CAS 65807-02-5)
- Oclacitinib impurity 2 (CAS CATO-C4X-30182)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
Why CATO?
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