5-(5-Chloro-2-methoxybenzenesulfonyl)-3-(trifluoromethyl)-5H,6H,6aH,7H,8H,9H,10H-pyrido[1,2-a]quinoxaline CAS 866041-05-6
| CAS No. | 866041-05-6 |
| Molecular Formula | C20H20ClF3N2O3S |
| Molecular Weight | 460.90 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.
5-(5-Chloro-2-methoxybenzenesulfonyl)-3-(trifluoromethyl)-5H,6H,6aH,7H,8H,9H,10H-pyrido[1,2-a]quinoxaline (CAS 866041-05-6) is a high-purity analytical reference standard with the molecular formula C20H20ClF3N2O3S and a molecular weight of 460.90 g/mol.
Based on its molecular formula C20H20ClF3N2O3S, 5-(5-Chloro-2-methoxybenzenesulfonyl)-3-(trifluoromethyl)-5H,6H,6aH,7H,8H,9H,10H-pyrido[1,2-a]quinoxaline 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 460.90 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C20H20ClF3N2O3S |
| Molecular Weight | 460.90 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.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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