3-ethyl-2 2 3-trimethylhexane structural formula July 8, 2019 16 32 64 128 3 ethyl 2 2 5 trimethylhexane structural formula 3 methylhexane Формула преступления. часть 3 2 metil 2 butena + h2 2 2 3 3 4 4-hexamethyl hexane
