3,4-Difluorothiophene-2-sulfonyl chloride CAS 2657625-36-8
| CAS No. | 2657625-36-8 |
| Molecular Formula | C4HClF2O2S2 |
| Molecular Weight | 218.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3,4-Difluorothiophene-2-sulfonyl chloride (CAS 2657625-36-8), a certified reference material (molecular formula C4HClF2O2S2, MW 218.63 g/mol) for analytical method development and quality control.
Structurally, 3,4-Difluorothiophene-2-sulfonyl chloride (C4HClF2O2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 218.63 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4HClF2O2S2 |
| Molecular Weight | 218.63 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 2 |
Related Difluorothiophene Standards
Recommended Standards
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