4-chloro-3-oxo-2-(4-oxo-3,4-dihydroquinazolin-2(1H)-ylidene)butanenitrile CAS 302803-83-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 302803-83-4 |
| Molecular Formula | C12H8ClN3O2 |
| Molecular Weight | 261.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-chloro-3-oxo-2-(4-oxo-3,4-dihydroquinazolin-2(1H)-ylidene)butanenitrile (CAS 302803-83-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C12H8ClN3O2. Molecular weight: 261.66 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H8ClN3O2 |
| Molecular Weight | 261.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
- 2-Chloro-2'-deoxycytidine (CAS 10212-19-8)
- 2'-Chloro-4'-nitro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1181385-58-9)
- 2'-Chloro-5'-nitro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1242339-09-8)
- 2'-Chloro-3'-nitro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1242339-13-4)
- 5-Chloro-N-(1h-indazol-3-yl)furan-2-carboxamide (CAS 1258676-97-9)
- 3-Chloro-4-nitrobenzophenone (CAS 131822-44-1)
- 5-((7-Chloro-1H-indol-3-yl)methylene)imidazolidine-2,4-dione (CAS 1627591-09-6)
- 4-Chloro-3-oxo-2-(4-oxo-3,4-dihydroquinazolin-2-yl)butanenitrile (CAS 172294-12-1)
Recommended Standards
- 4-Chloro-3-nitrobenzophenone (CAS 56107-02-9)
- 4-Chloro-4'-nitrobenzophenone, 97% (CAS 7497-60-1)
- 4-Chloro-1-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazine-3-carbonitrile (CAS 338395-88-3)
- tert-Butyl (R)-2-([1,1'-biphenyl]-3-ylmethyl)piperazine-1-carboxylate (CAS 1260606-64-1)
- (6-Methylbenzofuran-3-yl)methanol (CAS 125132-27-6)
- 4-Fluoro-1-methylindazole (CAS 109296-10-8)
- 1-Isocyanato-2-(methylthio)benzene (CAS 52260-30-7)
- 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(4-chlorophenyl)methyl]-1H-pyrrole-2-sulfonamide (CAS 338406-72-7)
- 4-Hydroxy-6-methyl-1-(pyridin-2-ylmethyl)pyridin-2(1H)-one (CAS 586378-69-0)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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