Ethyl (2E)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-3-[(4-methoxyphenyl)amino]prop-2-enoate CAS 338422-78-9
| CAS No. | 338422-78-9 |
| Molecular Formula | C18H16ClF3N2O3S |
| Molecular Weight | 432.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl (2E)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 338422-78-9), molecular formula C18H16ClF3N2O3S and molecular weight 432.84 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H16ClF3N2O3S, Ethyl (2E)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-3-[(4-methoxyphenyl)amino]prop-2-enoate contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 432.84 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H16ClF3N2O3S |
| Molecular Weight | 432.84 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-((5-Chloro-2-nitro-4-(trifluoromethyl)phenyl)thio)-N-mesitylacetamide (CAS 217490-34-1)
- N-(4-chlorophenyl)-1-((3-(trifluoromethyl)phenyl)sulfonyl)pyrrolidine-2-carboxamide (CAS 317822-03-0)
- 1-(2-Chlorobenzenesulfonyl)-N-[3-(trifluoromethyl)phenyl]pyrrolidine-2-carboxamide (CAS 317377-92-7)
- N-allyl-2-((4-chloro-N-(3-(trifluoromethyl)phenyl)phenyl)sulfonamido)acetamide (CAS 337922-21-1)
- (2E)-3-[(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)amino]-2-cyanobut-2-enamide (CAS 303153-06-2)
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- tert-Butyl 4-(2-aminoacetyl)-3-methylpiperazine-1-carboxylate (CAS 353495-70-2)
- 2-Chloro-N-(2,4-difluorophenyl)nicotinamide (CAS 83164-90-3)
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- Ethyl 6-methoxy-4-(methylimino)-1,4-dihydroquinoline-3-carboxylate (CAS 1215735-95-7)
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