3-methyl-7-(trifluoromethyl)-1H-quinoxalin-2-one CAS 166402-52-4
| CAS No. | 166402-52-4 |
| Molecular Formula | C10H15F3N2O |
| Molecular Weight | 236.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H15F3N2O, 3-methyl-7-(trifluoromethyl)-1H-quinoxalin-2-one contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.23 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.
3-methyl-7-(trifluoromethyl)-1H-quinoxalin-2-one (CAS 166402-52-4), molecular formula C10H15F3N2O and molecular weight 236.23 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C10H15F3N2O |
| Molecular Weight | 236.23 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related methyl Standards
- 3-Methyl-4'-(trifluoromethyl)-1,1'-biphenyl (CAS 122801-54-1)
- 4-Methyl-2'-(trifluoromethyl)-1,1'-biphenyl (CAS 145486-55-1)
- 3-methyl-7-(trifluoromethyl)-3,4-dihydro-1H-quinoxalin-2-one (CAS 146741-08-4)
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