| CAS No. | 33697-53-9 |
| Molecular Formula | C9H16O3 |
| Molecular Weight | 172.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Ethyl 2-ethyl-2-methyl-3-oxobutanoate (C9H16O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
CATO supplies Ethyl 2-ethyl-2-methyl-3-oxobutanoate (CAS 33697-53-9), a certified reference material (molecular formula C9H16O3, MW 172.22 g/mol) for analytical method development and quality control.
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.
| Molecular Formula | C9H16O3 |
| Molecular Weight | 172.22 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.) | 1966 |