2-(3-Chloro-2-methylphenyl)-4-(3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one CAS 478045-83-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 478045-83-9 |
| Molecular Formula | C23H14Cl2N4O2 |
| Molecular Weight | 449.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3-Chloro-2-methylphenyl)-4-(3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one (CAS 478045-83-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C23H14Cl2N4O2. Molecular weight: 449.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C23H14Cl2N4O2 |
| Molecular Weight | 449.29 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 2-(3-Chloro-2-methylphenyl)-4-(3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one (CAS 478045-85-1)
- 2-(3-Chloro-2-methylphenyl)-4-(3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one (CAS 478045-84-0)
- 4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)-N-(4-chlorophenyl)piperazine-1-carbothioamide (CAS 1311278-34-8)
- 1-(3-Chloro-5-trifluoromethyl-pyridin-2-ylmethyl)-piperidine-4-carbothioic acid S-(4-chloro-phenyl) ester (CAS 1311279-18-1)
- Chloro(ethylcyclopentadienyl)(triphenylphosphinenickel(II) (CAS 149272-90-2)
- (E)-({1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-5-yl}methylidene)[(2,6-dichlorophenyl)methoxy]amine (CAS 318958-92-8)
- N-(2-chloro-5-(trifluoromethyl)phenyl)-3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamide (CAS 349131-13-1)
- 2-{[(2-chloro-6-fluorophenyl)methyl]sulfanyl}-4-(4-methylphenyl)-1H,4H,5H-indeno[1,2-d]pyrimidin-5-one (CAS 691873-09-3)
Recommended Standards
- N-[(2,4-dimethoxyphenyl)methyl]-7-(iodomethyl)-3-methyl-1,5-naphthyridin-2-amine (CAS 2826206-85-1)
- 1380572-59-7 3-[2-(4-Benzyloxy-phenyl)-2-oxo-ethylidene]-7-bromo-3,4-dihydro-1H-quinoxalin-2-one (CAS 1380572-59-7)
- Methyl 6-Bromo-2,6-dideoxy-α-D-ribo-hexopyranoside Dibenzoate (CAS 18933-67-0)
- n-[(2-fluorophenyl)methyl]-4-(2-sulfanyl-1h-imidazol-1-yl)benzamide (CAS 1146289-97-5)
- 2,4-Difluoro-1-((methylsulfonyl)methyl)benzene (CAS 25195-44-2)
- 4-(((2-Chlorophenyl)amino)methyl)benzamide (CAS 1020914-83-3)
- Roxadustat Impurity 128 (CAS CATO-C4X-2213128)
- 5,6-Diethyl-4-oxo-4,5-dihydro-1H-pyrrolo[3,2-d]pyrimidine-7-carbonitrile (CAS 473997-08-9)
- Maribavir Impurity 25 (CAS 462114-04-1)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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