aliasname:(3r,3’r)zeaxanthin;all-trans-â-carotene-3,3’-diol;zeaxanthol;anchovyxanthin. we can see yellow metalescent rhombus tabular crystal extracted from ethanol with our naked eyes.it is nearly water-fast. it is absolute a natural pigment abstracted from corn, spinage,eggs,fishes, algae,etc every kinds of plants and animals by modern biotechnology.widely used in medicine and foodstuff industry as natural coloring. this product has been exported to eu, japan, usa, asia etc. the physical level and microbiological level can meet the export standards well.for avoiding fakes,this product already has normal enterprise no: q/kle226-2005. package: cardboard drums, with double aseptic food poly bags inside. or by cartons, with vacual aseptic food poly bags inside, 20kgs per carton with 8 bags inside,2.5kg per bag.