LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Allura Red AC food dye. Molecular model of the red azo compound Allura Red AC (C18.H14.N2.Na2.O8.S2), known as food dye E129. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue), oxygen (red) and sulphur (yellow). Sodium ions are violet. Illustration.
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