2,5-Difluorophenyl trifluoromethanesulphonate CAS 211512-93-5
| CAS No. | 211512-93-5 |
| Molecular Formula | C7H3F5O3S |
| Molecular Weight | 262.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 262.15 g/mol gives 2,5-Difluorophenyl trifluoromethanesulphonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,5-Difluorophenyl trifluoromethanesulphonate (CAS 211512-93-5), molecular formula C7H3F5O3S and molecular weight 262.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H3F5O3S, 2,5-Difluorophenyl trifluoromethanesulphonate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C7H3F5O3S |
| Molecular Weight | 262.15 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 | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Difluorophenyl Standards
- 3,5-Difluorophenyl trifluoromethanesulphonate (CAS 1333471-20-7)
- 2,3-Difluorophenyl trifluoromethanesulfonate (CAS 211315-75-2)
- 2,4-Difluorophenyl trifluoromethanesulfonate (CAS 264135-49-1)
- 1-(3,4-Difluorophenyl)-4-imino-1,4-dihydro-5H-pyrazolo[3,4-d]pyrimidin-5-amine (CAS 1416348-37-2)
- N-(3,4-Difluorophenyl)-3-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-amine (CAS 899757-82-5)
- Methyl 2-[4-(3,5-difluorophenyl)phenyl]acetate (CAS 1820716-60-6)
- 2-(3,4-Difluorophenyl)-1-(4-methoxyphenyl)ethan-1-one (CAS 221179-71-1)
- Methyl 4-(3,5-difluorophenyl)-3-methylbenzoate (CAS 2140327-06-4)
Recommended Standards
- 2,5-Dimethyl-4-hydroxymethylphenylboronic acid pinacol ester (CAS 2121514-86-9)
- 2-Benzyl-4-bromoaniline (CAS 86233-09-2)
- 2-(5-Ethyl-2-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 868167-66-2)
- 2-Isopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2055482-34-1)
- 1-{6-methyl-[1,2,4]triazolo[3,2-b][1,3]thiazol-5-yl}ethyl N-(3-methylphenyl)carbamate (CAS 477859-64-6)
- Phenyl (3,4-dimethoxyphenethyl)carbamate (CAS 84354-07-4)
- 2-((((1-Isopropyl-1H-pyrazol-5-yl)methyl)amino)methyl)phenol hydrochloride (CAS 1856083-50-5)
- Cefpodoxime Proxetil Impurity 34 (CAS CATO-C4X-157934)
- 2-(6-(4-Fluorophenyl)imidazo[2,1-b]thiazol-3-yl)-N-(o-tolyl)acetamide (CAS 897464-57-2)
- 1-(Iodomethyl)-2,8-dioxaspiro[4.5]decan-3-one (CAS 2138296-01-0)
- Tert-butyl 4-((4-bromophenyl)thio)piperidine-1-carboxylate (CAS 188527-03-9)
- 6-bromo-3-N-methylpyridine-3,4-diamine (CAS 1218997-22-8)
- 3-Chloro-N-(5-chloro-2-methylphenyl)propanamide (CAS 544682-32-8)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
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