8-amino-1,3,7-trimethylpurine-2,6-dione

1,3,7,1',3',7'-hexamethyl-3,7,3',7'-tetrahydro-8,8'-(ethanediyl-bis-azo)-bis-purine-2,6-dione

N,N'-Bis-(2-hydroxy-1,1-bis-hydroxymethyl-aethyl)-oxalamid

4.4'.4''-Trinitrohydrobenzamid

1-chloro-4-[2-(4-chlorophenyl)sulfanylethylsulfanyl]benzene