1 2 4 5 tetrazine 3 6 dicarboxylate July 8, 2019 16 32 64 128 Dimethyl 1 2 4 5 tetrazine 3 6 dicarboxylate 1 2 4 5-tetrazine-3 6-dicarboxylic acid 1 2 4 5-tetrazine 1 2 4 5-tetrazines 1 2 3 5-tetrazine
