1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)ethanesulfonyl fluoride 2-[(2-Iodo-1,1,2,2-tetrafluoroethyl)oxy]-1,1,2,2-tetrafluoroethanesulphonyl fluoride 5-Iodooctafluoro-3-oxapentanesulphonyl fluoride 66137-74-4 CAS 66137-74-4
| CAS No. | 66137-74-4 |
| Molecular Formula | C4F9IO3S |
| Molecular Weight | 426.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)ethanesulfonyl fluoride 2-[(2-Iodo-1,1,2,2-tetrafluoroethyl)oxy]-1,1,2,2-tetrafluoroethanesulphonyl fluoride 5-Iodooctafluoro-3-oxapentanesulphonyl fluoride 66137-74-4 is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)ethanesulfonyl fluoride 2-[(2-Iodo-1,1,2,2-tetrafluoroethyl)oxy]-1,1,2,2-tetrafluoroethanesulphonyl fluoride 5-Iodooctafluoro-3-oxapentanesulphonyl fluoride 66137-74-4 (CAS 66137-74-4) is a high-purity analytical reference standard with the molecular formula C4F9IO3S and a molecular weight of 426.00 g/mol.
Structurally, 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)ethanesulfonyl fluoride 2-[(2-Iodo-1,1,2,2-tetrafluoroethyl)oxy]-1,1,2,2-tetrafluoroethanesulphonyl fluoride 5-Iodooctafluoro-3-oxapentanesulphonyl fluoride 66137-74-4 (C4F9IO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 426.00 g/mol, it falls into the moderately-high-molecular-weight range. 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 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)ethanesulfonyl fluoride 2-[(2-Iodo-1,1,2,2-tetrafluoroethyl)oxy]-1,1,2,2-tetrafluoroethanesulphonyl fluoride 5-Iodooctafluoro-3-oxapentanesulphonyl fluoride 66137-74-4 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 | C4F9IO3S |
| Molecular Weight | 426.00 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | F/I-containing |
| Sulfur Atoms | 1 |
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