Ethyl 2-bromoethane-1-sulfinate CAS 25355-27-5
| CAS No. | 25355-27-5 |
| Molecular Formula | C4H9BrO2S |
| Molecular Weight | 201.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 2-bromoethane-1-sulfinate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 2-bromoethane-1-sulfinate (CAS 25355-27-5), molecular formula C4H9BrO2S and molecular weight 201.08 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 2-bromoethane-1-sulfinate (C4H9BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C4H9BrO2S |
| Molecular Weight | 201.08 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- (2-Bromoethane-1,1-diyl)dibenzene (CAS 40231-75-2)
- Bromoethane-d5 (CAS 3675-63-6)
- Bromoethane-1,1,2,2-d4 (CAS 25854-32-4)
- Bromoethane-1,2,2-d3 (CAS 23705-69-3)
- Bromoethane-2,2,2-d3 (CAS 7439-86-3)
- Bromoethane-1,1-d2 (CAS 3652-84-4)
- Bromoethane-2-d1 (CAS 23705-67-1)
- Bromoethane-2-<SUP>13</SUP>C (CAS 117890-45-6)
Recommended Standards
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- 4-(2,6-Dichlorophenyl)-1-butene (CAS 117269-67-7)
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