What has a structure resembling diferulic acid and is bright yellow?
Curcumin Curcumin is a bright yellow chemical produced by some plants. It is the principal curcuminoid of turmeric ("Curcuma longa"), a member of the ginger family (Zingiberaceae). It is sold as an herbal supplement, cosmetics ingredient, food flavoring, and food coloring. As a food additive, its E number is E100.
Thulium(III) chloride Thulium(III) chloride or thulium trichloride is the chemical compound composed of thulium and chlorine with the formula TmCl. It forms yellow crystals. Thulium(III) chloride has the YCl (AlCl) layer structure with octahedral thulium ions.