2 3 dimetilhexano fórmula estructural July 8, 2019 16 32 64 128 2 3 dimetilhexano formula estructural 3 etil 2 2 dimetilhexano formula estructural 3 methylhexane 2 3-dimethylhexane formula 2 3 dimethylhexane structural formula 2 3-dimethylhexan 2 3-dimethylhexane molecular formula