(E)-[(3-Nitrophenyl)methylidene]amino 3-(2-chloro-6-fluorophenyl)-5-methyl-1,2-oxazole-4-carboxylate CAS 303987-14-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303987-14-6 |
| Molecular Formula | C18H11ClFN3O5 |
| Molecular Weight | 403.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-[(3-Nitrophenyl)methylidene]amino 3-(2-chloro-6-fluorophenyl)-5-methyl-1,2-oxazole-4-carboxylate (CAS 303987-14-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H11ClFN3O5. Molecular weight: 403.75 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H11ClFN3O5 |
| Molecular Weight | 403.75 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- Ethyl 2-(5-acetyl-4-hydroxypyridin-2-yl)acetate (CAS 1393574-28-1)
- 4-(1,1-Difluoroethyl)-6-methoxypyrimidin-2-amine (CAS 2827059-43-6)
- 5-Amino-1-(3-fluorobenzyl)-N-(4-fluorobenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 902557-10-2)
- (4-(4-Ethylpiperazin-1-yl)phenyl)boronic acid monohydrochloride (CAS 2096339-70-5)
- 2-Aminoethyl 3-O-(a-D-galactopyranosyl)-b-D-galactopyranoside (CAS 443770-01-2)
- Hexapeptide-10 (CAS 146439-94-3)
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