1 2 4 6 tetraiodo 7 8 dimethyl 6 propylnonane July 8, 2019 16 32 64 128 4 5 6 7-tetrahydro-1h-indole 1 4 5 8-tetramethylnaphthalene 2 2 6 6-tetramethylheptane-3 5-dione 2 2 6 6-tetramethyl-4-piperidinone 4 6-dietil-8-isopropil-2 6 10 11-tetrametiltridecano