2-Oxobutyric acid methyl ester 3952-66-7 Methyl 2-ketobutyrate Methyl 2-oxobutanoate CAS 3952-66-7
| CAS No. | 3952-66-7 |
| Molecular Formula | C5H8O3 |
| Molecular Weight | 116.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2-Oxobutyric acid methyl ester 3952-66-7 Methyl 2-ketobutyrate Methyl 2-oxobutanoate (CAS 3952-66-7), a certified reference material (molecular formula C5H8O3, MW 116.12 g/mol) for analytical method development and quality control.
Structurally, 2-Oxobutyric acid methyl ester 3952-66-7 Methyl 2-ketobutyrate Methyl 2-oxobutanoate (C5H8O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. 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 116.12 g/mol, it falls into the low-molecular-weight range.
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.
Physical & Chemical Properties
| Molecular Formula | C5H8O3 |
| Molecular Weight | 116.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
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