Difluoromethanesulphonic acid CAS 40856-07-3
| CAS No. | 40856-07-3 |
| Molecular Formula | CH2F2O3S |
| Molecular Weight | 132.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Difluoromethanesulphonic acid is closely related to a sulfone group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Difluoromethanesulphonic acid (CAS 40856-07-3), a certified reference material (molecular formula CH2F2O3S, MW 132.09 g/mol) for analytical method development and quality control.
The molecular framework of Difluoromethanesulphonic acid (CH2F2O3S) is characterized by a sulfone group, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures Difluoromethanesulphonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | CH2F2O3S |
| Molecular Weight | 132.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Recommended Standards
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