65230-16-2 Cyclic (L-lactoyl-L-valyl-D-prolyl-D-valyl-L-lactoyl-L-valy-D-prolyl-D-valyl-L-lactoyl-L-valyl-D-prolyl-D-valyl-L-lactoyl-L-valyl-D-prolyl-D-valyl) Cyclo(L-lac-L-val-D-pro-D-val)3 Cyclo(L-lactoyl-L-valyl-D-prolyl-D-valyl)3 PV-Lac