Citrus Red 2

Citrus Red 2, Citrus Red No. 2, C.I. Solvent Red 80, or C.I. 12156 is an artificial dye. As a food dye, it is permitted by Food and Drug Administration (FDA) since 1956 only for use on skin on some Florida oranges. While the dye is a carcinogen, it does not penetrate the orange peel into the pulp. Its chemical formula is 181623. It is an orange to yellow solid or a dark red powder with melting point is 156 °C.

Citrus Red 2 is not water soluble, but readily soluble in many organic solvents.