1 2 2 4-tetramethylcyclohexane July 8, 2019 16 32 64 128 1 2 2 4 tetramethylcyclohexane 1-ethyl-2 2 4-trimethylcyclohexane 1 2 4-trimethylcyclohexane 3 methylhexane 1 2 4-trimethylcyclohexane most stable 1 2 3 4-tetramethylcycloheptane