1 3 6 8 tetrakis 4 carboxyphenyl pyrene July 8, 2019 16 32 64 128 1 3 6 8-tetrakis(p-benzoic acid)pyrene 1 2 4 5-tetrakis(4-carboxyphenyl)benzene 4 4' 4'' 4'''-(pyrene-1 3 6 8-tetrayl)tetrabenzoic acid
