7-(Trifluoromethyl)-3,4-dihydroquinoxalin-2(1H)-one CAS 716-81-4
| CAS No. | 716-81-4 |
| Molecular Formula | C9H7F3N2O |
| Molecular Weight | 216.16 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.
CATO supplies 7-(Trifluoromethyl)-3,4-dihydroquinoxalin-2(1H)-one (CAS 716-81-4), a certified reference material (molecular formula C9H7F3N2O, MW 216.16 g/mol) for analytical method development and quality control.
7-(Trifluoromethyl)-3,4-dihydroquinoxalin-2(1H)-one (C9H7F3N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H7F3N2O |
| Molecular Weight | 216.16 g/mol |
| Appearance | Off-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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Trifluoromethyl Standards
- 3-Oxo-3-(2-(trifluoromethyl)phenyl)propanal (CAS 1019029-43-6)
- 1-(4-(Trifluoromethyl)phenyl)propane-1,2-dione (CAS 10557-13-8)
- 1-(3-(Trifluoromethyl)phenyl)propane-1,2-dione (CAS 10557-15-0)
- 7-(trifluoromethyl)chroman-4-one (CAS 111141-02-7)
- 5-(Trifluoromethyl)chroman-4-one (CAS 111141-06-1)
- 6-(Trifluoromethyl)chroman-4-one (CAS 1122410-37-0)
- 2-(Trifluoromethyl)bicyclo[4.2.0]Octa-1,3,5-triene-7-carboxylic acid (CAS 1135489-35-8)
- 6-Trifluoromethyl-2,3-dihydro-1H-quinazolin-4-one (CAS 1220040-27-6)
Recommended Standards
- 7-(Trifluoromethyl)-3,4-dihydro-2,6-naphthyridin-1(2H)-one (CAS 765298-19-9)
- 7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 869945-20-0)
- 7-(Trifluoromethyl)-3,4-dihydro-1,5-naphthyridin-2(1H)-one (CAS 959653-47-5)
- 7-(Trifluoromethyl)chroman-3-one (CAS 944899-54-1)
- Fluticasone (CAS 90566-53-3)
- 7-Chloro-3,8-dimethyl-2-phenylquinoline-4-carboxylic acid (CAS 862647-93-6)
- 2-Amino-4-cyclopropoxybenzonitrile (CAS 1243353-20-9)
- Methyl 3-chloro-4-fluoro-2H-indazole-6-carboxylate (CAS 885521-38-0)
- 5-(4-Methoxybenzyl)imidazo[1,5-a]quinoxalin-4(5H)-one (CAS 221025-37-2)
- Benzenesulfonyl Azide (CAS 938-10-3)
- 3-Cyclopropyl-5-iodoisoxazole (CAS 1427195-41-2)
- N'-(4,6-Difluoro-1,3-benzothiazol-2-yl)-N,N-dimethylpropane-1,3-diamine (CAS 1105188-28-0)
- Chloroheptamethylcyclotetrasiloxane (CAS 18297-88-6)
- Peptide Impurity 34 (CAS 21282-09-7)
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