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List of colours permitted to be used in drugs.−(1) No drug shall contain a colour other than specified below :- (1) Natural Colours Annatto Carotene Chlorophyll Cochineal Curcumin Red Oxide of iron Yellow Oxide of iron 2 [Titanium Oxide] 3[Black Oxide of iron] (2) Artificial Colours Caramel 4[Riboflavin] (3) Coal Tar Colours Common name of the colour Colour Index Number Chemical Name 1 2 3 GREEN Quinazarine Green S.S. 61565 1, 4-bis (p-Toluino) anthraquinone. Alizarin Cyanine Green F. 61570 Disodium salt of 1, 4-bis (O-sulfo-p- Toluino) anthra-quinone. 2Fast Green F.C.F. 42053 Disodium salt of 4-{[4-(N-ethyl-p Sulfobenzylamino)-phenyl-]-(4-hydroxy- 2- sulfoniumphenyl)-methylene} [1-(N-ethyl-N-p-sulfobenzyl]∆ 2, 5-cyclohexadienimine]. 5* * * * * YELLOW Tartrazine 19140 Trisodium salt of 3-carboxy-5- hydroxy-l- p-sulfophenyl-4-p- Sulfophenyl azopyrazole. Sunset Yellow FCF 15985 Disodium salt of 1-p-sulfophenyl azo-2- naphthol-6-sulfonic acid. ______________________________________________________________________