Ethyl 4-Chloro-4,4-difluoro-3-oxobutanoate CAS 2063-17-4
| CAS No. | 2063-17-4 |
| Molecular Formula | C6H7ClF2O3 |
| Molecular Weight | 200.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 4-Chloro-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.
Ethyl 4-Chloro-4,4-difluoro-3-oxobutanoate (CAS 2063-17-4) is a high-purity analytical reference standard with the molecular formula C6H7ClF2O3 and a molecular weight of 200.57 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Ethyl 4-Chloro-4,4-difluoro-3-oxobutanoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.) | 1957 |
| Halogen Content | F/Cl-containing |
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Recommended Standards
- Ethyl 2-chloro-4,4-difluoro-3-oxobutanoate (CAS 933772-60-2)
- N-Hydroxy-4-nitrobenzimidoyl chloride (CAS 1011-84-3)
- 4-Chloro-6,7-difluoroquinazoline (CAS 625080-60-6)
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- 2-[(1,1-dioxido-1,2-benzisothiazol-3-yl)amino]-3-methylbutanoic acid (CAS 1396968-55-0)
- 5-(tert-Butyl)-1-methyl-1H-imidazole (CAS 61278-62-4)
- Insulin B (22-25) (CAS 34367-73-2)
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