1-bromo-1-methanesulfonylethene CAS 35495-31-9
| CAS No. | 35495-31-9 |
| Molecular Formula | C3H5BrO2S |
| Molecular Weight | 185.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-bromo-1-methanesulfonylethene (CAS 35495-31-9), molecular formula C3H5BrO2S and molecular weight 185.04 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-bromo-1-methanesulfonylethene (C3H5BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine 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 185.04 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C3H5BrO2S |
| Molecular Weight | 185.04 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) | 1.0 |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related bromo Standards
- 4-Bromo-1-(prop-2-yn-1-yl)-1H-pyrazole (CAS 1183907-89-2)
- 5-Bromo-4-vinylpyrimidine (CAS 1333222-29-9)
- 4-Bromo-5-methylpyrrole-2-carbonitrile (CAS 1350521-56-0)
- 4-Bromo-5-ethynyl-1-methyl-1H-pyrazole (CAS 1602782-77-3)
- 5-Bromo-1-methyl-1H-pyrrole-2-carbonitrile (CAS 1648837-65-3)
- 3-Bromo-1-methyl-1H-pyrrole-2-carbonitrile (CAS 1823870-54-7)
- 2-(4-Bromo-1H-pyrrol-2-yl)acetonitrile (CAS 62380-96-5)
- 4-Bromo-3-ethynyl-1-methyl-1H-pyrazole (CAS 2413878-82-5)
Recommended Standards
- 3-Acetamidobenzeneboronic acid (3-acetylaminophenyl)boronic acid 3-acetamidophenylboronic acid n-[3-(dihydroxyboranyl)phenyl]acetamide 3-acetylaminophenyl boronic acid m-acetamidophenylboronic acid 78887-39-5 (CAS 78887-39-5)
- 3-Bromothietane 1,1-dioxide (CAS 59463-72-8)
- 2844-89-5 Cyclohexyldichlorophosphine Cyclohexylphosphonous dichloride Cyclohexylphosphorus dichloride Dichlorocyclohexylphosphin (CAS 2844-89-5)
- 1-chloro-2-(3-chloroprop-1-yn-1-yl)benzene (CAS 1179176-22-7)
- 1-(2-(Ethylsulfonyl)ethyl)piperidine (CAS 98957-09-6)
- 5-aminomethyluridine Phosphoramidite (CAS CATO-C4X-288620)
- 1-(3-Pyridin-4-ylisoxazol-5-yl)methanamine (CAS 933741-07-2)
- 5-Bromo-4-isopropylpyrimidin-2-amine (CAS 1192813-91-4)
- 2-(5-Ethylthiazol-4-yl)acetic acid (CAS 1784366-49-9)
- 3-(Benzylamino)-4-hydroxytetrahydrothiophene 1,1-dioxide (CAS 321580-40-9)
- 4-bromo-1-chloro-2-isocyanatobenzene (CAS 923693-67-8)
- Tenuifoliside C (CAS 139726-37-7)
- Tert-butyl 3-cyanothiomorpholine-4-carboxylate (CAS 954226-00-7)
- FMRF-Like Peptide from snail Helix aspersa (CAS 98495-35-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com