Ethyl 6-oxo-5,6-dihydropyrazine-2-carboxylate CAS 1286744-23-7
| CAS No. | 1286744-23-7 |
| Molecular Formula | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 168.15 g/mol gives Ethyl 6-oxo-5,6-dihydropyrazine-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 6-oxo-5,6-dihydropyrazine-2-carboxylate (CAS 1286744-23-7), molecular formula C7H8N2O3 and molecular weight 168.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H8N2O3, Ethyl 6-oxo-5,6-dihydropyrazine-2-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Appearance | Off-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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 4,5-Dihydroxy-2-methylbenzoic acid (CAS 127531-40-2)
- 5H,6H,8H-Imidazo[2,1-c][1,4]oxazine-2-carboxylic acid (CAS 1286754-72-0)
- Methyl 1-methyl-6-oxo-1,6-dihydropyrimidine-5-carboxylate (CAS 1272651-88-3)
- Droxidopa Impurity 1 (CAS 13023-73-9)
- 3,3,3-Trifluoropropanethioamide (CAS 365428-34-8)
- Bis-(2-trifluoromethoxy-ethyl)-amine (CAS 960365-26-8)
- 6-Benzyl 5-tert-butyl (6S)-4-oxo-5-azaspiro[2.4]heptane-5,6-dicarboxylate (CAS 1628205-95-7)
- 3-(2-Hydroxypyrimidin-5-yl)benzonitrile (CAS 1261901-72-7)
- 2-(2-((((Benzyloxy)carbonyl)(isopropyl)amino)methyl)piperidin-1-yl)acetic acid (CAS 1353962-55-6)
- Losmiprofen (CAS 74168-08-4)
- Etoricoxib Impurity 23 (CAS 1810761-43-3)
- 9,9-Difluoro-3-azabicyclo[3.3.1]nonane (CAS 1251925-17-3)
- tert-Butyl 7-(hydroxymethyl)-1-methyl-6,7-dihydro-1H-[1,2,3]triazolo[4,5-c]pyridine-5(4H)-carboxylate (CAS 1391733-06-4)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
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