Ethyl 5,5-dimethyl-3-oxohexanoate, 97% CAS 5435-91-6
| CAS No. | 5435-91-6 |
| Molecular Formula | C10H18O3 |
| Molecular Weight | 186.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 5,5-dimethyl-3-oxohexanoate, 97% (CAS 5435-91-6), molecular formula C10H18O3 and molecular weight 186.25 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 5,5-dimethyl-3-oxohexanoate, 97% (C10H18O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H18O3 |
| Molecular Weight | 186.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
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- 7-(Difluoromethoxy)-3,4-dihydronaphthalen-1(2H)-one (CAS 1092348-41-8)
- 4-(Difluoromethoxy)-1-nitro-2-(trifluoromethyl)benzene (CAS 1227561-43-4)
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- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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