13507-80-7 Cyclo(D-val-hyi-val-D-hyi)3 Cyclo(valyl-hydroxyisovaleryl-valyl-hydroxyisovaleryl)3 Dodeca-valinomycin Valinomycin, 3-(L-2-hydroxy-3-methylbutanoic acid)-7-(L-2-hydroxy-3-methylbutanoic acid)-11-(L-2-hydroxy-3-methylbutanoic acid)-