2 4 5 triphenylimidazole colour July 8, 2019 16 32 64 128 2 4 5-triphenyl-1h-imidazole 2-(4-biphenylyl)-5-phenyl-1 3 4-oxadiazole 2 4 5-trichlorobiphenyl 2-(2-bromophenyl)-4 6-diphenyl-1 3 5-triazine 2 4-dichloro-5-(trifluoromethyl)pyrimidine
