2,4-Difluorophenyl trifluoromethanesulfonate CAS 264135-49-1
| CAS No. | 264135-49-1 |
| Molecular Formula | C7H3F5O3S |
| Molecular Weight | 262.15 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.
2,4-Difluorophenyl trifluoromethanesulfonate (CAS 264135-49-1) is a high-purity analytical reference standard with the molecular formula C7H3F5O3S and a molecular weight of 262.15 g/mol.
Structurally, 2,4-Difluorophenyl trifluoromethanesulfonate (C7H3F5O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 262.15 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2,4-Difluorophenyl trifluoromethanesulfonate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 2025 |
| 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)
- 2,5-Difluorophenyl trifluoromethanesulphonate (CAS 211512-93-5)
- 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-Ethyl-2-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 868167-66-2)
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- 2-(4-Methoxy-3,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 568572-19-0)
- 2-Benzyl-4-bromoaniline (CAS 86233-09-2)
- (4-Hydroxycyclohexyl)proline (CAS 2089655-98-9)
- 6-Hydroxykaempferol-3,6,7-triglucoside (CAS 145134-62-9)
- 1-(6-(4-Fluorophenyl)-2-methylpyrimidin-4-yl)pyrrolidine-3-carboxylic acid (CAS 1708268-56-7)
- 2-[1-(4-Chloro-3-fluorobenzyl)-3-oxo-2-piperazinyl]acetic acid (CAS 1033600-01-9)
- (1-((Dimethylamino)methyl)cyclopropyl)methanol (CAS 39943-41-4)
- 2-Methyl-4-(2,2,2-trifluoroethoxy)aniline (CAS 926266-86-6)
- 2-(2-Chlorophenyl)isoindoline-1,3-dione (CAS 22698-95-9)
- 5-Chloro-N-(5-(2-methoxyphenyl)-1,3,4-oxadiazol-2-yl)thiophene-2-carboxamide (CAS 899350-98-2)
- 3-(Pyridin-4-ylamino)isobenzofuran-1(3H)-one (CAS 75483-56-6)
- Liraglutide(5-31)TFA Salt (CAS CATO-C4X-19924)
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