LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Curcumin. Molecular model of the food colouring and food additive curcumin (C21.H20.O6). This is the principal active ingredient of the Indian spice turmeric. Its E number is E100. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white) and oxygen (red). Illustration.
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