Ethyl 2-bromo-3-oxopropanoate CAS 33142-22-2
| CAS No. | 33142-22-2 |
| Molecular Formula | C5H7BrO3 |
| Molecular Weight | 195.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 195.01 g/mol gives Ethyl 2-bromo-3-oxopropanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 2-bromo-3-oxopropanoate (CAS 33142-22-2), a certified reference material (molecular formula C5H7BrO3, MW 195.01 g/mol) for analytical method development and quality control.
Ethyl 2-bromo-3-oxopropanoate (C5H7BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | 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.) | 1966 |
| Halogen Content | Br-containing |
Related Ethyl 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)
- Methyl 3-bromo-4-oxobutanoate (CAS 16565-77-8)
- 3-Bromo-4-oxopentanoic Acid (CAS 62557-43-1)
- 5-bromo-1H-imidazole-4-carboxylic acid (CAS 50743-02-7)
- Methyl 2-bromo-3-oxobutanoate (CAS 3600-18-8)
Recommended Standards
- Methyl (2R,3S)-3-(bromomethyl)oxirane-2-carboxylate (CAS 220812-07-7)
- 1,2-Dichloro-1,1,2-trifluoropentane (CAS 261503-34-8)
- 0941AE 3-Bromo-2-oxo-butyric acid methyl ester 34329-73-2 C5H7BrO3 (CAS 34329-73-2)
- 3-(Bromomethyl)oxetane-3-carboxylic Acid (CAS 1802048-89-0)
- 4,6-Dihydroxyisophthalic Acid (CAS 19829-74-4)
- n-(3-Chloro-4-fluorophenyl)furan-2-carboxamide (CAS 304890-03-7)
- (3-(2-Methoxyphenoxy)phenyl)methanaminehydrochloride (CAS 1171099-72-1)
- 7-Bromo-4-methyl-6-azaindole (CAS 1379344-79-2)
- 5-Bromo-1-phenyl-1H-benzo[d]imidazole (CAS 221636-18-6)
- (1S,5R)-2-[(tert-Butoxy)carbonyl]-2-azabicyclo[3.1.0]hexane-1-carboxylic acid (CAS 956769-68-9)
- 2-(3-Azaspiro[5.5]Undecan-3-yl)ethan-1-amine (CAS 1012-58-4)
- N-(3-aminopropyl)isonicotinamide (CAS 6108-75-4)
- 3-Cyclopropyl-1-methyl-1h-pyrazole-5-sulfonyl chloride (CAS 1343588-67-9)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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