1,1,1-Trifluoro-4-(methylsulfonyl)butan-2-one CAS 1343593-04-3
| CAS No. | 1343593-04-3 |
| Molecular Formula | C5H7F3O3S |
| Molecular Weight | 204.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,1,1-Trifluoro-4-(methylsulfonyl)butan-2-one (CAS 1343593-04-3), molecular formula C5H7F3O3S and molecular weight 204.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H7F3O3S, 1,1,1-Trifluoro-4-(methylsulfonyl)butan-2-one contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 204.17 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.
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 | C5H7F3O3S |
| Molecular Weight | 204.17 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Trifluoro Standards
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Recommended Standards
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- (S)-3-(4-(((Benzyloxy)carbonyl)amino)phenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid (CAS 55533-25-0)
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- N-Methyl-D-Tyrosine Hydrochloride (CAS 2044710-65-6)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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