2 ethyl 3 methylpentanoic acid July 8, 2019 16 32 64 128 2 ethyl 3 methylpentanoic acid structure 2 ethyl 3 methylhexanoic acid 2 ethyl 4 hydroxy 3 methylpentanoic acid Structure of the carboxylic acid 2 ethyl 3 methyl pentanoic acid 2 methyl 2 butanol 3 methylhexane 3 methylpent-2-enoic acid