6-<<(3,4-dichlorophenyl)methyl>sulfinyl>-N,N-dimethyl-1,2,4,5-tetrazin-3-amine
6-<<(3,4-dichlorophenyl)methyl>thio>-N,N-dimethyl-1,2,4,5-tetrazin-3-amine
6-<<(3,4-dichlorophenyl)methyl>thio>-N-methyl-1,2,4,5-tetrazin-3-amine
6-<<(3,4-dichlorophenyl)methyl>thio>-1,2,4,5-tetrazin-3-amine
1,1'-