2-[3-(Trifluoromethyl)benzenesulfonyl]quinoxaline CAS 338394-56-2
| CAS No. | 338394-56-2 |
| Molecular Formula | C15H9F3N2O2S |
| Molecular Weight | 338.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 338.30 g/mol gives 2-[3-(Trifluoromethyl)benzenesulfonyl]quinoxaline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-[3-(Trifluoromethyl)benzenesulfonyl]quinoxaline (CAS 338394-56-2) is a high-purity analytical reference standard with the molecular formula C15H9F3N2O2S and a molecular weight of 338.30 g/mol.
Structurally, 2-[3-(Trifluoromethyl)benzenesulfonyl]quinoxaline (C15H9F3N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 338.30 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C15H9F3N2O2S |
| Molecular Weight | 338.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Trifluoromethyl Standards
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Recommended Standards
- 2-(4-Fluorophenyl)-5-phenyl-6,6,6-trifluorohex-3-yne-2,5-diol (CAS 247220-83-3)
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- 5-((2-((2,5-Dichlorophenyl)thio)ethyl)thio)-1,3,4-thiadiazol-2-amine (CAS 878072-94-7)
- 1-[2-(4-Bromophenyl)-2-oxoethyl]-3-[(3-chlorophenyl)methyl]imidazolidine-2,4,5-trione (CAS 303986-39-2)
- Tert-butyl 1-(aminomethyl)cyclohexane-1-carboxylate (CAS 1263378-20-6)
- 3-(1H-Imidazol-2-yl)-5,6-dimethylpyrazin-2-amine (CAS 65409-30-5)
- (R)-2-((R)-1-(2-Amino-6-oxo-1H-purin-9(6H)-yl)-2-oxoethoxy)-3-oxopropyl trihydrogen diphosphate (CAS 62695-32-3)
- 2-Methoxynaphthalene-1-sulfinamide (CAS 102333-37-9)
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- 2-(Thiophene-2-sulfonamido)acetic acid (CAS 82068-09-5)
- 3-(Ethylsulfanyl)-1,2-dihydropyridin-2-one (CAS 914482-26-1)
- Prolactin-Releasing Peptide (12-31) (human) (CAS 235433-36-0)
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