4-(3,4-Dichlorophenyl)-2-methylphthalazin-1(2H)-one CAS 4725-84-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4725-84-2 |
| Molecular Formula | C15H10Cl2N2O |
| Molecular Weight | 305.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3,4-Dichlorophenyl)-2-methylphthalazin-1(2H)-one (CAS 4725-84-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H10Cl2N2O. Molecular weight: 305.16 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H10Cl2N2O |
| Molecular Weight | 305.16 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 |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 4-(2-Chlorophenyl)-2-(4-chlorophenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 400076-69-9)
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- 4-(2-Chlorophenyl)-2-(3-chlorophenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 400076-68-8)
- 4-Amino-2,2,6,6-tetramethylpiperidin-1-ol (CAS 76462-91-4)
- Methyl 5-cyano-6-(dimethylamino)-2-methylnicotinate (CAS 860649-57-6)
- 1-(4-(Dimethylamino)-2-nitrophenyl)ethanone (CAS 13210-36-1)
- Tetrasodium Ethylenediaminetetraacetate Dihydrate (CAS 10378-23-1)
- 4-Chloro-3-(2-(2-chloro-4-nitrophenoxy)acetamido)benzene-1-sulfonyl fluoride (CAS 25299-94-9)
- 2-(4-Fluoro-2-(isoxazol-5-yl)phenoxy)acetic acid (CAS 763109-04-2)
- D-[His]1-Semaglutide X TFA salt (CAS CATO-CPTD788634)
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