(2R)-2-(bromomethyl)-1,1-difluorocyclopropane CAS 1290140-59-8
| CAS No. | 1290140-59-8 |
| Molecular Formula | C4H5BrF2 |
| Molecular Weight | 170.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (2R)-2-(bromomethyl)-1,1-difluorocyclopropane (CAS 1290140-59-8), a certified reference material (molecular formula C4H5BrF2, MW 170.98 g/mol) for analytical method development and quality control.
(2R)-2-(bromomethyl)-1,1-difluorocyclopropane (C4H5BrF2) contains fluorine/bromine substitution. Halogen substitution raises its density and boiling point; 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 | C4H5BrF2 |
| Molecular Weight | 170.98 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br-containing |
Related R Standards
- (2S)-2-(bromomethyl)-1,1-difluorocyclopropane (CAS 1290140-60-1)
- 2-(Bromomethyl)-1,1-difluorocyclopropane (CAS 77613-65-1)
- 3-(bromomethyl)bicyclo[1.1.0]butane-1-carbonitrile (CAS 566152-35-0)
- 1-(Bromomethyl)-1-chlorocyclopropane (CAS 1378809-51-8)
- 2-Bromomethyl-3-chloro-1-propene (CAS 1871-59-6)
- 1-[(Bromomethyl)sulfanyl]ethan-1-one (CAS 54820-26-7)
- 3-(bromomethyl)-3-fluorooxetane (CAS 865451-86-1)
- 4-(Bromomethyl)pyridazine (CAS 1253790-86-1)
Recommended Standards
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- 2-Bromo-3-fluoropropanoic acid (CAS 16652-36-1)
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- 2-Bromo-2-fluoropropanoic acid (CAS 132629-22-2)
- Methyl 2-methoxy-3-methylbenzoate, 97% (CAS 52239-62-0)
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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