2 3 dimethyl hexan 4 ol July 8, 2019 16 32 64 128 4 chloro 2 3 dimethylhexane 2 ol 2 3-dimethylhexan 2 3-dimethylhexane 2 3-dimethyl-3-ethylhexane 2 3-dimethylhexane formula 2 3-dimethylhexene