2-Bromoethyl methanesulfonate CAS 4239-10-5
| CAS No. | 4239-10-5 |
| Molecular Formula | C3H7BrO3S |
| Molecular Weight | 203.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromoethyl methanesulfonate 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.
2-Bromoethyl methanesulfonate (CAS 4239-10-5) is a high-purity analytical reference standard with the molecular formula C3H7BrO3S and a molecular weight of 203.05 g/mol.
2-Bromoethyl methanesulfonate (C3H7BrO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, 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.
CATO manufactures 2-Bromoethyl methanesulfonate 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 | C3H7BrO3S |
| Molecular Weight | 203.05 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) | 0.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromoethyl Standards
- 1-(1-Bromoethyl)-2-fluorobenzene (CAS 405931-46-6)
- 1-(1-Bromoethyl)-3-fluorobenzene (CAS 405931-45-5)
- 1-(1-Bromoethyl)-4-fluorobenzene (CAS 65130-46-3)
- 1-(2-Bromoethyl)-3-fluorobenzene (CAS 25017-13-4)
- 2-(2-Bromoethyl)pyridazin-3(2H)-one (CAS 83675-79-0)
- 5-(2-Bromoethyl)-1-ethyl-1h-pyrazole (CAS 1339115-41-1)
- 5-(2-Bromoethyl)-1-ethyl-1h-imidazole (CAS 1466739-88-7)
- 1-(2-Bromoethyl)-3,5-dimethylpyrazole (CAS 67000-35-5)
Recommended Standards
- 2-Bromo-4-fluoro-1,3-dimethylbenzene (CAS 26829-82-3)
- 2-Fluoro-5-methylbenzyl Bromide (CAS 886500-09-0)
- 2-Bromo-4-ethyl-1-fluorobenzene (CAS 891843-33-7)
- 3-Bromo-6-fluoro-o-xylene (CAS 52548-00-2)
- tert-Butyl (5-(diethylamino)pentan-2-yl)carbamate (CAS 1480004-00-9)
- 2-(4-(((Tert-butoxycarbonyl)amino)methyl)cyclohexyl)acetic acid (CAS 1780047-83-7)
- 2-(4-Nitrophenyl)nicotinonitrile (CAS 1352318-15-0)
- 3-(5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl)propanoic acid (CAS 1082828-46-3)
- 4-(3-((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acrylamido)benzamide (CAS 477329-29-6)
- N-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-4-methyl-2-phenylpyrimidine-5-carboxamide (CAS 338406-23-8)
- 5-((3-Acetylphenoxy)methyl)furan-2-carbaldehyde (CAS 1399659-00-7)
- 11-Deoxy Corticosterone-d8 (CAS 55487-63-3)
- 4-Cyclopropoxypyridine-2-sulfonamide (CAS 1243290-02-9)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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