(4E)-2-(4-Chlorophenyl)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-4,5-dihydro-1,3-oxazol-5-one CAS 303998-86-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303998-86-9 |
| Molecular Formula | C16H13ClN4O2 |
| Molecular Weight | 328.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4E)-2-(4-Chlorophenyl)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-4,5-dihydro-1,3-oxazol-5-one (CAS 303998-86-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C16H13ClN4O2. Molecular weight: 328.75 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C16H13ClN4O2 |
| Molecular Weight | 328.75 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 |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related E Standards
- N-(2-Chlorophenyl)-5-oxo-1-(p-tolyl)-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000573-94-3)
- 1-(2-Chlorophenyl)-5-(4-methoxyphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1330108-27-4)
- Benzyl (5-(4-chlorophenyl)oxazol-2-yl)carbamate (CAS 13575-29-6)
- (1-(4-Chlorophenyl)-1H-1,2,3-triazol-4-yl)methyl phenylcarbamate (CAS 338419-08-2)
- [(3Z)-1-[(3-Chlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 303998-09-6)
- [(3Z)-1-[(4-Chlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 303997-82-2)
- [5-(2-Chlorophenyl)-1,2-oxazol-3-yl]methyl N-phenylcarbamate (CAS 343374-50-5)
- [5-(4-Chlorophenyl)-1,2-oxazol-3-yl]methyl N-phenylcarbamate (CAS 343374-66-3)
Recommended Standards
- (3-Amino-4H-1,2,4-triazol-4-yl)[2-(benzyloxy)-5-chlorophenyl]methanone (CAS 892684-18-3)
- (5-Phenyl-1,2-oxazol-3-yl)methyl N-(4-chlorophenyl)carbamate (CAS 343374-58-3)
- (1-Phenyl-1H-1,2,3-triazol-4-yl)methyl (4-chlorophenyl)carbamate (CAS 338757-21-4)
- N-Ethoxyfuran-2-carboxamide (CAS 103185-36-0)
- 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole 13C2,15N Acetate (CAS 1217002-93-1)
- 4-Chloro-3-fluoro-3-pyrrolidinomethyl benzophenone (CAS 898770-54-2)
- H-D-Allo-Thr-OH.HCl (CAS 100157-61-7)
- (2,4-Dimethylphenyl)(4-(thiomorpholinomethyl)phenyl)methanone (CAS 898782-73-5)
- 3-(1,3-Dioxan-2-yl)-4-nitropropiophenone (CAS 898786-24-8)
- Peptide Impurity 27 (CAS 1350456-68-6)
Why CATO?
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