1-(Bromomethyl)-1-(methylsulfonyl)cyclopropane CAS 2091872-40-9
| CAS No. | 2091872-40-9 |
| Molecular Formula | C5H9BrO2S |
| Molecular Weight | 213.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 1-(Bromomethyl)-1-(methylsulfonyl)cyclopropane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 213.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-(Bromomethyl)-1-(methylsulfonyl)cyclopropane (CAS 2091872-40-9), molecular formula C5H9BrO2S and molecular weight 213.09 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C5H9BrO2S |
| Molecular Weight | 213.09 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) | 1.0 |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromomethyl Standards
- 3-(Bromomethyl)tetrahydrothiophene 1,1-dioxide (CAS 321979-37-7)
- 5-(Bromomethyl)-2-cyclopropylpyrimidine (CAS 1823028-59-6)
- 5-(Bromomethyl)-1,3-dihydroisobenzofuran (CAS 188111-48-0)
- 5-(Bromomethyl)-2,3-dihydrobenzofuran (CAS 196598-26-2)
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Recommended Standards
- 3-(2-Bromoethyl)thietane 1,1-dioxide (CAS 1784790-19-7)
- 2-Bromobenzo[b]thiophene (CAS 5394-13-8)
- 3,5-Bis(difluoromethyl)-4-nitro-1H-pyrazole (CAS 1452556-91-0)
- Brexpiprazole impurity 01 (CAS 1423-61-6)
- (2R,3R,4R)-2,3,4,5-Tetrahydroxypentanal-5-13C (CAS 139657-62-8)
- 2-Amino-N'-(propan-2-ylidene)benzohydrazide (CAS 53131-21-8)
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- Endo-4a-Ser-Goserelin (CAS CATO-C4X-192050)
- Tert-butyl (R)-2-(cyanomethyl)azetidine-1-carboxylate (CAS 2102410-75-1)
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- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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