(1R,3S)-3-[(Z)-2-Chloro-2-fluorovinyl]-2,2-dimethylcyclopropanecarbonyl chloride CAS 77789-75-4
| CAS No. | 77789-75-4 |
| Molecular Formula | C8H9Cl2FO |
| Molecular Weight | 211.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (1R,3S)-3-[(Z)-2-Chloro-2-fluorovinyl]-2,2-dimethylcyclopropanecarbonyl chloride (CAS 77789-75-4), a certified reference material (molecular formula C8H9Cl2FO, MW 211.06 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H9Cl2FO, (1R,3S)-3-[(Z)-2-Chloro-2-fluorovinyl]-2,2-dimethylcyclopropanecarbonyl chloride contains a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H9Cl2FO |
| Molecular Weight | 211.06 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 | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | F/Cl-containing |
Recommended Standards
- (1R,3S)-3-[(E)-2-Chloro-2-fluorovinyl]-2,2-dimethylcyclopropanecarbonyl chloride (CAS 77789-74-3)
- (E)-2-Bromo-3-phenylacrylaldehyde (CAS 99686-39-2)
- (1R,3R)-3-[2-Chloro-2-fluorovinyl]-2,2-dimethylcyclopropanecarbonyl chloride (CAS 77723-39-8)
- (E)-3-(3-Bromophenyl)acrylaldehyde (CAS 97985-66-5)
- 2-Chloro-n-[3-(2,3-dihydro-1h-inden-5-yl)-1-phenyl-1h-pyrazol-5-yl]acetamide (CAS 956262-03-6)
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- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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