Pyrazine-2,3,5,6-tetracarboxylic acid CAS 43193-60-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 43193-60-8 |
| Molecular Formula | C8H4N2O8 |
| Molecular Weight | 256.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyrazine-2,3,5,6-tetracarboxylic acid (CAS 43193-60-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H4N2O8. Molecular weight: 256.13 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H4N2O8 |
| Molecular Weight | 256.13 g/mol |
| Appearance | Pale yellow to 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 2 |
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- 2-(2-(Pyrazine-2-carboxamido)thiazol-4-yl)acetic acid (CAS 926204-94-6)
- 4-(Pyrazine-2-carboxamido)benzoic acid (CAS 717854-83-6)
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Recommended Standards
- Propyzamide M1 RH-24644 (CAS 29918-40-9)
- rel-(3aR,6aS)-2-(Naphthalen-1-yl)tetrahydrothieno[3,4-d][1,3,2]dioxaborole (CAS 62729-32-2)
- N-(2,4-dichlorobenzyl)-1-(furan-2-yl)methanamine (CAS 725226-21-1)
- 6-(4-Chlorophenyl)-2-(3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 865657-90-5)
- N-Me-Lys-OH (CAS 7431-89-2)
- Ethyl 3-bromo-4-((2-chlorobenzyl)oxy)-5-ethoxybenzoate (CAS 1706453-11-3)
- Ethyl 4-oxo-1-(p-tolyl)pyrrolidine-3-carboxylate (CAS 745043-75-8)
- 137182-37-7 C32H34O9 Toddalosin W1246 (CAS 137182-37-7)
- 6-Ethylisothiazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione (CAS 1338666-14-0)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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