1-Difluoromethanesulfonyl-2-fluorobenzene CAS 1228784-41-5
| CAS No. | 1228784-41-5 |
| Molecular Formula | C7H5F3O2S |
| Molecular Weight | 210.17 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.
CATO supplies 1-Difluoromethanesulfonyl-2-fluorobenzene (CAS 1228784-41-5), a certified reference material (molecular formula C7H5F3O2S, MW 210.17 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H5F3O2S, 1-Difluoromethanesulfonyl-2-fluorobenzene 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 210.17 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.
As a certified reference material (CRM), 1-Difluoromethanesulfonyl-2-fluorobenzene 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 | C7H5F3O2S |
| Molecular Weight | 210.17 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1990 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Difluoromethanesulfonyl Standards
- 1-Difluoromethanesulfonyl-4-fluorobenzene (CAS 153698-38-5)
- 3-Difluoromethanesulfonyl-2-methylaniline (CAS 1501832-74-1)
- 3-Difluoromethanesulfonyl-4-methylaniline (CAS 1512534-35-8)
- 1-difluoromethanesulfonyl-3-nitrobenzene (CAS 24906-73-8)
- 4-Difluoromethanesulfonyl-1-N-ethylbenzene-1,2-diamine (CAS 24933-35-5)
- 1-(4-Difluoromethanesulfonyl-3-methoxyphenyl)ethan-1-one (CAS 1235441-69-6)
- Difluoromethanesulfonyl Chloride (CAS 1512-30-7)
- Difluoromethanesulfonyl fluoride (CAS 1554-47-8)
Recommended Standards
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- 2-(4,5-Dimethyl-1H-imidazol-1-yl)acetic acid hydrochloride (CAS 1609402-89-2)
- 1,2-O-(1-methylethylidene)-4-c-[(phenylmethoxy)methyl]-3-o-(phenylmethyl)--l-lyxofuranose (CAS 153186-10-8)
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