1,1-difluoropropane-2-sulfonyl chloride CAS 1955554-83-2
| CAS No. | 1955554-83-2 |
| Molecular Formula | C3H5ClF2O2S |
| Molecular Weight | 178.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,1-difluoropropane-2-sulfonyl chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,1-difluoropropane-2-sulfonyl chloride (CAS 1955554-83-2), molecular formula C3H5ClF2O2S and molecular weight 178.59 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 1,1-difluoropropane-2-sulfonyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 178.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 1,1-difluoropropane-2-sulfonyl chloride 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 | C3H5ClF2O2S |
| Molecular Weight | 178.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related difluoropropane Standards
- 3,3-difluoropropane-1-sulfonyl chloride (CAS 1314907-49-7)
- 2,2-Difluoropropane-1-sulfonyl chloride (CAS 1779953-86-4)
- 2,2-Difluoropropane-1,3-diyl diacetate (CAS 33420-49-4)
- (R)-3,3-difluoropropane-1,2-diol (CAS 1026908-13-3)
- 2,2-difluoropropane-1,3-diol (CAS 428-63-7)
- 2,2-Difluoropropane-1,3-diamine (CAS 159029-29-5)
- 2,2-Difluoropropane (CAS 420-45-1)
- 1,3-Difluoropropane (CAS 462-39-5)
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- 2-(2-Chlorophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 77989-14-1)
- 9-Ethyl-1-oxa-4-azaspiro[5.5]undecane (CAS 1251031-12-5)
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