Carmine. 7-Glucopyranosyl-3,5,6,8-tetrahydroxyl-1-methyl-9,10-dioxoanthracene-2-carboxylic Acid . C.I. 75470 . Carminic Acid . Cochineal Dye . Dye, Cochineal . Coccinellin . Natural Red 4 . Coloring matter from the insect Coccus cacti L. It is used in foods, pharmaceuticals, toiletries, etc., as a dye, and also has use as a microscopic stain and biological marker. . 0.56