| CAS No. | 180991-05-3 |
| Molecular Formula | C3[13C]H6O5 |
| Molecular Weight | 135.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 135.08 g/mol gives L-malic acid-1-<SUP>13</SUP>C distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
L-malic acid-1-<SUP>13</SUP>C (CAS 180991-05-3), molecular formula C3[13C]H6O5 and molecular weight 135.08 g/mol, is a CATO reference standard with documented purity and traceability.
L-malic acid-1-<SUP>13</SUP>C (C3[13C]H6O5) contains a carbohydrate-derived structure. 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.
| Molecular Formula | C3[13C]H6O5 |
| Molecular Weight | 135.08 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.) | 2008 |