2,6-Dimethyl-3,6-dihydro-2H-pyran-4-yl trifluoromethanesulfonate CAS 195817-69-7
| CAS No. | 195817-69-7 |
| Molecular Formula | C8H11F3O4S |
| Molecular Weight | 260.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,6-Dimethyl-3,6-dihydro-2H-pyran-4-yl trifluoromethanesulfonate (CAS 195817-69-7), molecular formula C8H11F3O4S and molecular weight 260.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 2,6-Dimethyl-3,6-dihydro-2H-pyran-4-yl trifluoromethanesulfonate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 260.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H11F3O4S |
| Molecular Weight | 260.23 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 |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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- (2,2-Dimethyl-1-(4-(trifluoromethoxy)phenyl)cyclopropyl)methanol (CAS 2228876-15-9)
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Recommended Standards
- (4-formylphenyl) trifluoromethanesulfonate (CAS 17763-69-8)
- 4-(Trifluoromethylthio)benzene-1-sulfonyl fluoride (CAS 883146-32-5)
- Ethyl 6-(difluoromethyl)-4-hydroxy-4,5,6,7-tetrahydrobenzofuran-3-carboxylate (CAS 1706452-47-2)
- 7-Methoxy-2-(trifluoromethyl)-4H-chromene-4-thione (CAS 869986-00-5)
- (S)-2-(5-bromo-1H-indol-3-yl)propan-1-ol (CAS 1932499-19-8)
- 5-Bromopyridine-2,3-diamine dihydrochloride (CAS 1171836-31-9)
- Ethyl 1,3-dimethyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 929973-69-3)
- 4-(4-Methylpiperazin-1-yl)-2-(naphthalen-2-yl)quinoline (CAS 181775-85-9)
- 1-(3-Aminoquinoxalin-1(2H)-yl)ethanone (CAS 782428-50-6)
- 4,4',4''-(1H-Imidazole-2,4,5-triyl)tripyridine (CAS 23974-93-8)
- 4-Bromo-3-(bromomethyl)pyridine (CAS 1260856-56-1)
- (2S,4S)-1-(tert-butoxycarbonyl)-4-(3,4-dimethylphenoxy)pyrrolidine-2-carboxylic acid (CAS 1354486-23-9)
- Methyl 5-methyl-2-(methylamino)thiazole-4-carboxylate (CAS 1552600-99-3)
- Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 90880-35-6)
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