2 3 6 7-tetramethylnaphthalene July 8, 2019 16 32 64 128 2 3 6 7 tetramethylnaphthalene 2 2 6 6-tetramethyl-3 5-heptanedionate 3 methylhexane 2 2 3 6-tetramethylheptane 2 2 6 6-tetramethyl-3 5-heptanedione