Methyl 2,3,3,3-tetrafluoro-2-(fluorosulfonyl)propanoate CAS 663-78-5
| CAS No. | 663-78-5 |
| Molecular Formula | C4H3F5O4S |
| Molecular Weight | 242.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 2,3,3,3-tetrafluoro-2-(fluorosulfonyl)propanoate (CAS 663-78-5), molecular formula C4H3F5O4S and molecular weight 242.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 2,3,3,3-tetrafluoro-2-(fluorosulfonyl)propanoate (C4H3F5O4S) contains a carbohydrate-derived structure, a sulfone group, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 242.12 g/mol, it falls into the medium-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.
As a certified reference material (CRM), Methyl 2,3,3,3-tetrafluoro-2-(fluorosulfonyl)propanoate 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 | C4H3F5O4S |
| Molecular Weight | 242.12 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
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Recommended Standards
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- (Z,Z)-2,4-Decadienal (CAS 65909-91-3)
- 2-Bromo-1-(2-chloro-4-methoxyphenyl)ethan-1-one (CAS 30095-51-3)
- 4-(4-Phenyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)benzene-1,3-diol (CAS 394237-55-9)
- Dorzagliatin Impurity 10 (CAS CATO-C4X-344110)
- IID610-2Br (CAS 1147124-24-0)
- (R)-1-(3,4-dichlorophenyl)-2-methylpropan-1-amine (CAS 1213853-08-7)
- 6-Chloro-1-(p-tolyl)-2,3,4,9-tetrahydro-1h-pyrido[3,4-b]indole (CAS 529476-80-0)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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