SEARCH Articles Figures Tables Appendix Glance Index to Typical Pyrazine Derivatives Available from Other Heterocyclic Systems Appendix Trivial Names for Pyrazine Derivatives Properties of Pyrazine A-Oxides and their C-Alkyl Derivatives Pyrazine cation radical derivatives Pyrazines and benzo derivatives Pyrazines derivatives Pyrido pyrazines derived from Pyrimidine and Pyrazine Derivatives Zwitterions derived from pyridine, pyrazine