3 ethyl 2 3 dimethylpentane formula July 8, 2019 16 32 64 128 3 ethyl 2 3 dimethylpentane structural formula Molecular formula of 3 ethyl 2 3 dimethylpentane 3 methylhexane 2 3-diethyl-2-methylpentane 3 3-diethylpentane 2 3-dimethylpentane