Ethyl 2-bromo-4,4-difluoro-3-oxobutanoate CAS 660840-16-4
| CAS No. | 660840-16-4 |
| Molecular Formula | C6H7BrF2O3 |
| Molecular Weight | 245.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 245.02 g/mol gives Ethyl 2-bromo-4,4-difluoro-3-oxobutanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 2-bromo-4,4-difluoro-3-oxobutanoate (CAS 660840-16-4) is a high-purity analytical reference standard with the molecular formula C6H7BrF2O3 and a molecular weight of 245.02 g/mol.
The molecular framework of Ethyl 2-bromo-4,4-difluoro-3-oxobutanoate (C6H7BrF2O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Ethyl 2-bromo-4,4-difluoro-3-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 | C6H7BrF2O3 |
| Molecular Weight | 245.02 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.) | 1985 |
| Halogen Content | F/Br-containing |
Related Ethyl Standards
- 7-Bromo-5,6-difluoroquinoxaline (CAS 1210048-13-7)
- 7-Bromo-4,6-difluorocinnoline (CAS 2759951-38-5)
- 8-Bromo-2,3-difluoro-1,5-naphthyridine (CAS 2767413-31-8)
- Ethyl 4-bromo-4,4-difluoro-3-oxobutanoate (CAS 367922-07-4)
- 2-Bromo-6-nitrobenzamide (CAS 107485-65-4)
- 4-Bromo-2-nitrobenzamide (CAS 1152237-09-6)
- 2-(4-bromo-2-hydroxyphenyl)-2-oxoacetic acid (CAS 1221724-46-4)
- 3-Bromo-4-nitrobenzamide (CAS 1261794-86-8)
Recommended Standards
- Benzene, 1-iodo-3-isocyanato- (CAS 23138-56-9)
- 1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione, 3-bromo-1-methyl- (CAS 1033444-07-3)
- 7-Iodo-[1,2,4]triazolo[4,3-a]pyridine (CAS 864866-44-4)
- 1-(3,4-Dichlorophenyl)-2,2,2-trifluoroethan-1-ol (CAS 106044-11-5)
- 5-Formyl-2-(2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)benzo[d]oxazole-7-carbonitrile (CAS 2231027-08-8)
- Ethyl mercaptoethylsulfonate (CAS CATO-C4X-169213)
- 2-Fluoro-N-methyl-3-nitroaniline (CAS 1369899-47-7)
- 3-(Diphenylmethylene)indolin-2-one (CAS 94878-34-9)
- 1-[3-(Benzyloxy)phenyl]-4-methanesulfonylbenzene (CAS 1345472-18-5)
- 2-Butylthiazole-5-carboxylic acid (CAS 30709-73-0)
- N,N-Diethyl-1H-benzo[d]imidazol-2-amine (CAS 91337-47-2)
- 3-amino-1,1-difluoropentan-2-ol hydrochloride (CAS 1864063-11-5)
- prop-2-ynyl N-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]carbamate (CAS 2408797-67-9)
- Insulin Lispro (CAS 133107-64-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com