15.6.5 Tetrazines
1,2,4,5-Tetrazines
Annelated[1,2,4,5]Tetrazines
Tetrazines
1,2,3,4-Tetrazines
C2H2N4 1,2,4,5-Tetrazine
1,2,3,5-Tetrazines
Other Tetrazines and Pentazines