4-(4-Chlorophenyl)-2-[4-(trifluoromethoxy)phenyl]-1,2-dihydrophthalazin-1-one CAS 478048-28-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 478048-28-1 |
| Molecular Formula | C21H12ClF3N2O2 |
| Molecular Weight | 416.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Chlorophenyl)-2-[4-(trifluoromethoxy)phenyl]-1,2-dihydrophthalazin-1-one (CAS 478048-28-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H12ClF3N2O2. Molecular weight: 416.78 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H12ClF3N2O2 |
| Molecular Weight | 416.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 3-[1-(3-Chlorophenyl)-1H-pyrazol-3-yl]-1-[3-(trifluoromethyl)phenyl]-1,4-dihydropyridazin-4-one (CAS 318498-04-3)
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Recommended Standards
- 5-[(1Z)-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}methyl]-3-phenyl-2,1-benzoxazole (CAS 344276-26-2)
- 1638621-94-9 KS-000027EJ methyl (2S)-3-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-2-acetamidopropanoate (CAS 1638621-94-9)
- N-(2-((4-bromophenyl)thio)ethyl)-2-((2-chlorophenyl)thio)acetamide (CAS 337923-59-8)
- N-((6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-3-yl)methyl)propan-2-amine (CAS 1706456-83-8)
- 6-Amino-5-propyl-2-thioxo-2,3-dihydropyrimidine-4-carboxylic acid (CAS 13164-79-9)
- 4-Cyano-3-iodobenzoic acid (CAS 58123-75-4)
- 1111301-77-9 3-{[(4-Isopropylphenyl)sulfonyl]amino}thiophene-2-carboxylic acid MFCD13696882 (CAS 1111301-77-9)
- 6-Chloro-2-(ethoxymethyl)pyrimidin-4-amine (CAS 3120-40-9)
- 2-(4-Bromophenyl)-1-methyl-5-oxopyrrolidine-3-carboxylic acid (CAS 1282577-02-9)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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