Ethyl 2-[(3E)-1-[(3,4-dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]acetate CAS 338393-07-0
| CAS No. | 338393-07-0 |
| Molecular Formula | C19H15Cl2NO3 |
| Molecular Weight | 376.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 2-[(3E)-1-[(3,4-dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]acetate (CAS 338393-07-0) is a high-purity analytical reference standard with the molecular formula C19H15Cl2NO3 and a molecular weight of 376.23 g/mol.
Based on its molecular formula C19H15Cl2NO3, Ethyl 2-[(3E)-1-[(3,4-dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]acetate contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 376.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Ethyl 2-[(3E)-1-[(3,4-dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]acetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H15Cl2NO3 |
| Molecular Weight | 376.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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