(info@sports-ingredient.com)Specification is 70% tested By UV,color is yellow powder. It is easily acetic acid glacial-soluble. It is absolute a natural pigment abstracted from the rootstalk of Zingberaceae Curcuma Longa L. by modern biotechnology.Widely used in foodstuff industry,e.g.candy,ice cream, carbonated beverage, artificial butter,jelly, dried turnip, curry powder etc as natural coloring. Also to be taken as an indicator of chemical reactions.