Ivermectin Component B1a Molecular Formula: C48H74O14, Component B1b Molecular Formula: C47H72O14 Ivermectin is white or light yellow color powder and used for killing worms and insects.Propositional usage: 2g/day for 7days.Vilid time: within 2yeas with stoced in dark, cool, dry and clean place.Packing: 10kg/fiber drum Ivermectin