Ethyl 2-chloro-4,4-difluoro-3-oxobutanoate CAS 933772-60-2
| CAS No. | 933772-60-2 |
| Molecular Formula | C6H7ClF2O3 |
| Molecular Weight | 200.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethyl 2-chloro-4,4-difluoro-3-oxobutanoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Ethyl 2-chloro-4,4-difluoro-3-oxobutanoate (CAS 933772-60-2), molecular formula C6H7ClF2O3 and molecular weight 200.57 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 2-chloro-4,4-difluoro-3-oxobutanoate (C6H7ClF2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine 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 200.57 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.
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.
Physical & Chemical Properties
| Molecular Formula | C6H7ClF2O3 |
| Molecular Weight | 200.57 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.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Ethyl Standards
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Recommended Standards
- 4-Chloro-6,7-difluoroquinazoline (CAS 625080-60-6)
- Ethyl 4-Chloro-4,4-difluoro-3-oxobutanoate (CAS 2063-17-4)
- 4-Chloro-5,7-difluoroquinazoline (CAS 791602-75-0)
- N-Hydroxy-4-nitrobenzimidoyl chloride (CAS 1011-84-3)
- 3-(N-Methyl4-chlorobenzenesulfonamido)thiophene-2-carboxylic acid (CAS 1638612-62-0)
- 5-amino-1-(5-fluoro-2-methylphenyl)-1H-pyrazole-4-carbonitrile (CAS 1159678-19-9)
- (R)-tert-Butyl 3-(pyridin-2-yloxy)pyrrolidine-1-carboxylate (CAS 1417789-79-7)
- N-(3,7-Dimethylocta-2,6-dien-1-yl)acrylamide (CAS 164925-73-9)
- 8-Hydroxy-3,4-dihydrobenzo[f][1,4]oxazepin-5(2H)-one (CAS 50502-78-8)
- N-(4-methylcyclohexyl)aniline (CAS 34160-43-5)
- 5-Chloro-3-iodo-6-methylpyridin-2-amine (CAS 952917-46-3)
- 1,3,6,8-Tetrachlorocarbazole (CAS 58910-96-6)
- Budesonide EP Impurity K (Mixture of Epimer) (CAS 51333-05-2)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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