Ethyl 2-amino-4-(2-chlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate CAS 333341-09-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 333341-09-6 |
| Molecular Formula | C18H18ClNO4 |
| Molecular Weight | 347.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-amino-4-(2-chlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate (CAS 333341-09-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H18ClNO4. Molecular weight: 347.79 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H18ClNO4 |
| Molecular Weight | 347.79 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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 | 1 |
Related Ethyl Standards
- Ethyl 2-amino-4-(4-chlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate (CAS 107752-88-5)
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Recommended Standards
- Clanobutin (CAS 30544-61-7)
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- 6-Benzyl-2-phenyl-5,6,7,8-tetrahydro-3H-pyrido[4,3-d]pyrimidin-4-one (CAS 1047-48-9)
- 3,3-Dimethyl-pyrrolidine x HBr, 98% (CAS 857423-44-0)
- Fmoc-Cys(Mtt)-OH (CAS 269067-38-1)
- CP 43 (CAS 850467-66-2)
- 13637-37-1 AR-1K2597 n,n-dimethyl-tert.-butylamine (CAS 13637-37-1)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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