LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Tartrazine. Molecular model of the synthetic lemon-yellow azo dye tartrazine (C16.H9.N4.Na3.O9.S2), used as a food colouring (E102). Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue), oxygen (red) and sulphur (yellow) and sodium (violet). Illustration.
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