5,6-dimethyl-3-oxo-3,4-dihydropyrazine-2-carboxylic acid CAS 57796-64-2
| CAS No. | 57796-64-2 |
| Molecular Formula | C7H12N2O3 |
| Molecular Weight | 172.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 172.18 g/mol gives 5,6-dimethyl-3-oxo-3,4-dihydropyrazine-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,6-dimethyl-3-oxo-3,4-dihydropyrazine-2-carboxylic acid (CAS 57796-64-2) is a high-purity analytical reference standard with the molecular formula C7H12N2O3 and a molecular weight of 172.18 g/mol.
5,6-dimethyl-3-oxo-3,4-dihydropyrazine-2-carboxylic acid (C7H12N2O3) contains an amino-acid-derived structure, an amide 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H12N2O3 |
| Molecular Weight | 172.18 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 2 |
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