EThyl 2-bromo-2-methyl-3-oxobutanoate CAS 32116-05-5
| CAS No. | 32116-05-5 |
| Molecular Formula | C7H11BrO3 |
| Molecular Weight | 223.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
EThyl 2-bromo-2-methyl-3-oxobutanoate (CAS 32116-05-5), molecular formula C7H11BrO3 and molecular weight 223.06 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, EThyl 2-bromo-2-methyl-3-oxobutanoate (C7H11BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, 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 223.06 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.
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 | C7H11BrO3 |
| Molecular Weight | 223.06 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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
- 2-Bromo-1-(5-fluorothiophen-2-yl)ethanone (CAS 1001014-28-3)
- ETHYL 3-BROMO-2-OXOPENTANOATE (CAS 113264-43-0)
- 1-(5-Bromo-3-fluorothiophen-2-yl)ethan-1-one (CAS 1403468-49-4)
- 3-Bromo-5-hydroxybenzoic acid (CAS 140472-69-1)
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- Methyl 2-bromo-2-(1-hydroxycyclobutyl)acetate (CAS 1849210-81-6)
Recommended Standards
- ethyl 2-bromo-2-(oxetan-3-yl)acetate (CAS 2306269-69-0)
- Ethyl 2-bromo-3-oxopentanoate (CAS 87943-99-5)
- 4,7-Dichloroquinoline-3-carbonitrile (CAS 936498-07-6)
- Ethyl 5-Bromo-2-oxopentanoate (CAS 57224-29-0)
- Methyl 4-[(2,3-diethylquinoxalin-6-yl)oxy]benzoate (CAS 439110-70-0)
- Bis(1,5-cyclooctadiene)bis(μ-diphenylphosphido)dirhodium (CAS 82829-24-1)
- 3-Methylcyclohexyl methanesulfonate (CAS 1346162-29-5)
- 2-Azaspiro[4.5]decan-4-amine (CAS 2098057-86-2)
- 3-Methoxythiophene-2-sulfonyl chloride (CAS 184039-62-1)
- (9H-Fluoren-9-yl)methyl (2-((2-hydroxyethyl)amino)ethyl)carbamate (CAS 2389064-36-0)
- (2-chloro-2-fluoro-1-methylcyclopropyl)methanol (CAS 1823356-09-7)
- 5-(3,4-Diethoxyphenyl)-3-(3-fluorophenyl)-1H-1,2,4-triazole (CAS 1416343-91-3)
- Furin Inhibitor II (CAS 673202-67-0)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
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