cis-Methyl 2-bromocyclopropanecarboxylate CAS 71666-02-9
| CAS No. | 71666-02-9 |
| Molecular Formula | C5H7BrO2 |
| Molecular Weight | 179.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), cis-Methyl 2-bromocyclopropanecarboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
cis-Methyl 2-bromocyclopropanecarboxylate (CAS 71666-02-9), molecular formula C5H7BrO2 and molecular weight 179.01 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H7BrO2, cis-Methyl 2-bromocyclopropanecarboxylate contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 179.01 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.
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.
Physical & Chemical Properties
| Molecular Formula | C5H7BrO2 |
| Molecular Weight | 179.01 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) | 2.0 |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Br-containing |
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