Pyrazinecarbonitrile (2-cyanopyrazine, CAS 19847-12-2) is a colorless heterocyclic nitrile and a compact building block for pharmaceutical, agrochemical and specialty chemical synthesis. It is supplied as a high-purity liquid for fine-chemical manufacturing and analytical reference use.
Specifications
| Appearance | Colorless liquid |
| Purity (GC) | 99.9% min |
| Moisture (K.F) | 0.1% max |
| CAS number | 19847-12-2 |
| Molecular formula | C5H3N3 |
| Molecular weight | 105.10 g/mol |
Applications
- Intermediate for pyrazine-containing pharmaceutical actives and impurities, including pyrazinamide-related chemistry.
- Building block for agrochemical and fine-chemical synthesis.
- Precursor for pyrazine carboxamides, amidines, esters and other functional pyrazines.
Handling and Storage
Store in a cool, dry, well-ventilated place with the container tightly closed, away from heat, ignition sources, strong acids, bases and oxidants. Use appropriate personal protective equipment when handling and follow the safety data sheet.
Chemical Structure
C1=CN=C(C=N1)C#N
FAQ
What is pyrazinecarbonitrile used for? It is used mainly as an intermediate for pharmaceuticals, agrochemicals and other pyrazine derivatives, and as a reference impurity for pyrazinamide analysis.
What is the CAS number of pyrazinecarbonitrile? CAS 19847-12-2.
How is pyrazinecarbonitrile supplied? In standard industrial packaging with a batch COA; custom quantities and packaging are available on request.




