2 3-dimethyl-2 3-diphenylbutane July 8, 2019 16 32 64 128 2 3 dimethyl 2 3 diphenylbutane 2 methyl 2 butanol 2 3-dimethylphenol 2 3-dimethyl-4-ethylheptane 2 3-dimethylpent-2-ene
