4-Bromo-4,4-difluorobut-2-enoic acid CAS 234096-26-5
| CAS No. | 234096-26-5 |
| Molecular Formula | C4H3BrF2O2 |
| Molecular Weight | 200.97 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 4-Bromo-4,4-difluorobut-2-enoic acid (CAS 234096-26-5), a certified reference material (molecular formula C4H3BrF2O2, MW 200.97 g/mol) for analytical method development and quality control.
Structurally, 4-Bromo-4,4-difluorobut-2-enoic acid (C4H3BrF2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 200.97 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 4-Bromo-4,4-difluorobut-2-enoic 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.
Physical & Chemical Properties
| Molecular Formula | C4H3BrF2O2 |
| Molecular Weight | 200.97 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2023 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
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Recommended Standards
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- 4-(Aminocarbonyl)-3,5-difluorophenylboronic acid (CAS 924279-82-3)
- (3-(Dimethylamino)-4,5-difluorophenyl)boronic acid (CAS 1704068-69-8)
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- (5-(Furan-2-yl)-1H-1,2,4-triazol-3-yl)(3-methoxyphenyl)methanamine (CAS 1707373-39-4)
- 4-((Hexyloxy)methyl)aniline (CAS 1037130-42-9)
- 3-Benzhydryl-5-(o-tolyloxy)-4,5-dihydroisoxazole (CAS 89249-62-7)
- S-p-Tolyl 4-(benzo[d]oxazol-2-yl)benzothioate (CAS 62572-76-3)
- 4-(5-Fluoro-2-methylphenyl)-4H-benzo[b][1,4]thiazine-2-carbonitrile 1,1-dioxide (CAS 1207011-07-1)
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- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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