2-Bromo-2-methylpropanoyl chloride CAS 20469-89-0
| CAS No. | 20469-89-0 |
| Molecular Formula | C4H6BrClO |
| Molecular Weight | 185.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-2-methylpropanoyl chloride (CAS 20469-89-0) is a high-purity analytical reference standard with the molecular formula C4H6BrClO and a molecular weight of 185.45 g/mol.
Based on its molecular formula C4H6BrClO, 2-Bromo-2-methylpropanoyl chloride contains a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 185.45 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Bromo-2-methylpropanoyl chloride 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.
Physical & Chemical Properties
| Molecular Formula | C4H6BrClO |
| Molecular Weight | 185.45 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl/Br-containing |
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