... , 7-alpha-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo- 2-anthracenecarboxylic acid; 7 ... ,6,8-tetrahydroxy- 1-methyl-9,10-dioxo-2- anthracenecarboxylic acid; 1.Cochineal also named Carmine,E120,Natural red 4.2.CAS No ...