6-Oxo-1,6-dihydropyrazine-2,3-dicarboxamide CAS 73403-52-8
| CAS No. | 73403-52-8 |
| Molecular Formula | C6H6N4O3 |
| Molecular Weight | 182.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
6-Oxo-1,6-dihydropyrazine-2,3-dicarboxamide (CAS 73403-52-8) is a high-purity analytical reference standard with the molecular formula C6H6N4O3 and a molecular weight of 182.14 g/mol.
Based on its molecular formula C6H6N4O3, 6-Oxo-1,6-dihydropyrazine-2,3-dicarboxamide 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 182.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C6H6N4O3 |
| Molecular Weight | 182.14 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
Related Oxo Standards
- 1,1'-(2,3-Dihydropyrazine-1,4-diyl)diethanone (CAS 229024-99-1)
- 1,4-Dihydropyrazine-2,3-dithione (CAS 80458-31-7)
- 6-Oxo-5,6-dihydropyrazine-2-carboxylic acid (CAS 606489-10-5)
- 6-Oxo-1,6-dihydropyrazine-2-carboxamide (CAS 15000-88-1)
- 6-Oxo-1,6-dihydropyrazine-2-carbaldehyde (CAS 1261461-74-8)
- 3-Oxo-3,4-dihydropyrazine-2-carbaldehyde (CAS 1261578-86-2)
- 5-Oxo-4,5-dihydropyrazine-2-carbaldehyde (CAS 50866-32-5)
- 6-Oxo-1,6-dihydropyrazine-2-carbonitrile (CAS 1065620-57-6)
Recommended Standards
- 6-methyl-4-(trifluoromethyl)-2,3-dihydropyridazin-3-one (CAS 560132-48-1)
- 9-Methyluric acid (CAS 55441-71-9)
- 6-AMINO-3-NITROPYRIDINE-2-CARBOXAMIDE (CAS 267243-45-8)
- Cyclopentyl Trifluoroacetate (CAS 703-13-9)
- 1-(6-Hydroxy-3-methoxy-2,4-dimethylphenyl)naphthalen-2-ol (CAS 1832513-56-0)
- (S)-Ethyl 3-hydroxy-4-iodobutanoate (CAS 112100-39-7)
- 7-Bromo-5-methyl-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 1213484-88-8)
- 2-(Hydroxymethyl)-5-(trifluoromethyl)phenol (CAS 349-66-6)
- N-[4-(3,4-Dichlorophenyl)-1,3-thiazol-2-yl]pyridin-3-amine (CAS 497060-07-8)
- (1H-Pyrazol-4-yl)(pyridin-4-yl)methanone (CAS 137368-99-1)
- 2-Amino-4,6-difluorobenzyl Alcohol (CAS 1260783-44-5)
- 6-Bromo-4-chloro-2-(difluoromethyl)-7-methoxyquinazoline (CAS 2883761-41-7)
- 1-(3-Fluoro-5-methylphenyl)pentan-1-one (CAS 1352225-27-4)
- D-Ala28-Tirzepatide (CAS CATO-CPTD788906)
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