3 hydroxy 4 methyl pentanoic acid July 8, 2019 16 32 64 128 3 hydroxy 4 methylpentanoic acid 3 hydroxy 4 methyl pentanoic acid structure 2 chloro 3 hydroxy 4 methylpentanoic acid 2 ethyl 4 hydroxy 3 methylpentanoic acid 3 methylhexane 3 hydroxy pentanoic acid