Methyl 3-bromo-4-oxobutanoate CAS 16565-77-8
| CAS No. | 16565-77-8 |
| Molecular Formula | C5H7BrO3 |
| Molecular Weight | 195.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H7BrO3, Methyl 3-bromo-4-oxobutanoate 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 195.01 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.
CATO supplies Methyl 3-bromo-4-oxobutanoate (CAS 16565-77-8), a certified reference material (molecular formula C5H7BrO3, MW 195.01 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), Methyl 3-bromo-4-oxobutanoate 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 | C5H7BrO3 |
| Molecular Weight | 195.01 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
Related Methyl Standards
- 4-bromo-1H-imidazole-2-carboxylic acid (CAS 1260753-02-3)
- 3-Bromo-2-oxopropyl acetate (CAS 130335-46-5)
- 3-Bromo-2-oxopentanoic acid (CAS 1378830-51-3)
- 5-bromo-4-oxo-pentanoic acid (CAS 14594-23-1)
- 3-Bromo-4-oxopentanoic Acid (CAS 62557-43-1)
- 5-bromo-1H-imidazole-4-carboxylic acid (CAS 50743-02-7)
- Ethyl 2-bromo-3-oxopropanoate (CAS 33142-22-2)
- Methyl 2-bromo-3-oxobutanoate (CAS 3600-18-8)
Recommended Standards
- Mirabegron Impurity 58 (CAS 17790-81-7)
- 3-(Bromomethyl)oxetane-3-carboxylic Acid (CAS 1802048-89-0)
- N'-acetyl-2-bromoacetohydrazide (CAS 1342263-70-0)
- 1,2-Dichloro-1,1,2-trifluoropentane (CAS 261503-34-8)
- 1-Chloroisoquinoline-6-sulfonyl chloride (CAS 205055-64-7)
- 1-Bromo-2-(phenylsulfonyl)benzene (CAS 5324-79-8)
- o-Cresol-d3 (methyl-d3) (CAS 70837-27-3)
- 1-(5-Fluoro-2-nitrophenyl)-2-methylpropan-2-amine (CAS 1498669-39-8)
- 3-methyl-3H-spiro[2-benzofuran-1,4'-piperidine] (CAS 747353-15-7)
- N-(2-(2-fluorophenoxy)ethyl)cyclopropanamine (CAS 1040020-94-7)
- 1-(Piperidin-4-yl)-1,4-diazepan-5-one (CAS 344779-09-5)
- 4-(4-(Aminomethyl)-2-fluorophenyl)piperazin-2-one hydrochloride (CAS 1311315-93-1)
- 3,4-Dimethyl-N-(2-(1-methyl-1H-pyrrol-2-yl)-2-morpholinoethyl)benzenesulfonamide (CAS 1049391-65-2)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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