4-Bromobicyclo[2.2.2]octane-1-carboxylic acid CAS 1989-50-0
| CAS No. | 1989-50-0 |
| Molecular Formula | C9H13BrO2 |
| Molecular Weight | 233.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromobicyclo[2.2.2]octane-1-carboxylic acid (CAS 1989-50-0) is a high-purity analytical reference standard with the molecular formula C9H13BrO2 and a molecular weight of 233.10 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 4-Bromobicyclo[2.2.2]octane-1-carboxylic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 233.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H13BrO2 |
| Molecular Weight | 233.10 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Bromobicyclo Standards
- Methyl 2-bromobicyclo[2.2.1]heptane-1-carboxylate (CAS 102450-73-7)
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- 1-(4-Bromobicyclo[2.2.2]octan-1-yl)ethanone (CAS 126256-96-0)
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