... %, 20%, 50% HPLC Product characteristics a. Low ash, impurity, heavy metal, solvent Zeaxanthin 5%, 10%, 20%, 40%, 50% Usage:Zeaxanthin is ... intake lowers the risk of cataract development.Also could act as a food additive. CAS number: 144-68-3 EINECS : 205 ... rhombic sheet crystal. Package: 5kg/bag with aluminum inner, or as required. Storage: keep in low temperature and seal preserve. Contents supply ...