| CAS No. | 1007476-77-8 |
| Molecular Formula | C3[13C]H3D2O3 Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
α-KETOBUTYRIC ACID, SODIUM SALT METHYL-13C, D2 (CAS 1007476-77-8), molecular formula C3[13C]H3D2O3 Na and molecular weight 126.08 g/mol, is a CATO reference standard with documented purity and traceability.
α-KETOBUTYRIC ACID, SODIUM SALT METHYL-13C, D2 (C3[13C]H3D2O3 Na) contains deuterium isotope labeling, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C3[13C]H3D2O3 Na |
| Molecular Weight | 126.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |