(R)-3-Bromo-2-methylpropanoic acid CAS 89361-97-7
| CAS No. | 89361-97-7 |
| Molecular Formula | C4H7BrO2 |
| Molecular Weight | 167.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-3-Bromo-2-methylpropanoic acid 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.
(R)-3-Bromo-2-methylpropanoic acid (CAS 89361-97-7), molecular formula C4H7BrO2 and molecular weight 167.00 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, (R)-3-Bromo-2-methylpropanoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 167.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C4H7BrO2 |
| Molecular Weight | 167.00 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) | 1.0 |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
Related R Standards
- 1-Bromo-4-hydroxy-2-butanone (CAS 1138728-96-7)
- 3-bromo-5-methyl-1,2,4-oxadiazole (CAS 1228427-07-3)
- 2-Bromo-1,4-dioxane (CAS 179690-41-6)
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Recommended Standards
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- (S)-3-Bromobutanoic acid (CAS 77790-08-0)
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