Ethyl 2-((4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-3-oxo-7-(trifluoromethyl)-3,4-dihydroquinoxalin-2-yl)thio)acetate CAS 337921-06-9
| CAS No. | 337921-06-9 |
| Molecular Formula | C21H17ClF6N4O3S |
| Molecular Weight | 554.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-((4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-3-oxo-7-(trifluoromethyl)-3,4-dihydroquinoxalin-2-yl)thio)acetate.
CATO supplies Ethyl 2-((4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-3-oxo-7-(trifluoromethyl)-3,4-dihydroquinoxalin-2-yl)thio)acetate (CAS 337921-06-9), a certified reference material (molecular formula C21H17ClF6N4O3S, MW 554.89 g/mol) for analytical method development and quality control.
Ethyl 2-((4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-3-oxo-7-(trifluoromethyl)-3,4-dihydroquinoxalin-2-yl)thio)acetate (C21H17ClF6N4O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ethyl 2-((4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-3-oxo-7-(trifluoromethyl)-3,4-dihydroquinoxalin-2-yl)thio)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 | C21H17ClF6N4O3S |
| Molecular Weight | 554.89 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
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- 2-(3-Isobutyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetic acid (CAS 1401319-27-4)
- MSOP (CAS 66515-29-5)
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