Feed Grade Vitamin K3 MSB ≥ 96% white crystal power, no smell, water-soluble, not dissolved in ethanol, hardly dissolved in aether and benzene, stable in normal temperature, easily decomposed under light, stimulating skin and respiratory tract. MNB ≥96％& ≥50% White crystal power, little water ?soluble(1.3g/100ml), easily dissolved in ethane and chloroform.