Calcium 3-Methyl-2-oxobutyrate CAS 51828-94-5
| CAS No. | 51828-94-5 |
| Molecular Formula | 2*C5H7O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Calcium 3-Methyl-2-oxobutyrate (CAS 51828-94-5), molecular formula C5H7O3Ca and molecular weight 155.19 g/mol, is a CATO reference standard with documented purity and traceability.
Calcium 3-Methyl-2-oxobutyrate (C5H7O3Ca) 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.
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.
Physical & Chemical Properties
| Molecular Formula | 2*C5H7O3 Ca |
| Molecular Weight | 155.19 g/mol |
| Purity | >95%,Titration |
| 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) | 2.5 |
| CAS Registry Year (est.) | 1971 |
Recommended Standards
- 1-Cyclopentylpiperidin-4-ol (CAS 832735-53-2)
- 3-Cyano-1,2-dihydro-6-methyl-2-oxo-4-pyridinecarboxylic acid (CAS 98436-89-6)
- 6-Bromo-1-methyl-1H-pyrrolo[3,2-b]pyridine-5-carbonitrile (CAS 1537208-18-6)
- 3-Hydroxy-1-phenylpyridin-1-ium chloride (CAS 15941-41-0)
- 1,1-Dimethylethyl N-[2-(2-pyridinyldithio)ethyl]carbamate (CAS 535943-48-7)
- (Acetonitrile)[2-di-tert-butyl(2',4',6'-triisopropylbiphenyl)phosphine]gold(I) hexafluoroantimonate (CAS 1140531-94-7)
- 2-Chloro-5,6-dimethyl-1,3-benzothiazole (CAS 104076-80-4)
- 2-[[2-(4-Chlorophenoxy)acetyl]amino]acetic acid (CAS 6293-97-6)
- 1-(2-Bromo-5-fluoropyridin-3-yl)ethan-1-ol (CAS 2643341-31-3)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
Why CATO?
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