3 3-dimethyl-1 penten July 8, 2019 16 32 64 128 3 dimethyl 1-pentene 3 3 dimethyl 1 pentene structure 3 3 диметилпентен 1 3 3 диметил 1 пентин 3 methylhexane 3 4-dimethyl-1-pentene
