3 ethyl 2 5 dimethylhexane July 8, 2019 16 32 64 128 3 ethyl 2 5 dimethylhexane structure 3-ethyl-2 5 dimethylpentane Formule semi développée 3 ethyl 2 5 dimethylhexane 3 methylhexane 2 3-dimethyl-3-ethylhexane
