1 3 5-triphenylbenzene July 8, 2019 16 32 64 128 1 3 5 triphenylbenzene sds 1 3 5-triphenylbenzene synthesis 1 3 5-triphenyl-1 3 5-triazine 1 3 5-tri(pyridin-4-yl)benzene 1 3 5-trinitrobenzene