... Lemon yellow, Tartrazine, Food additives Molecular formula: C16H9N4Na3O9S2 MW: 534.390 CAS No. :1934-21-0 for food, medicine Lemon yellow, Tartrazine, Food additivesFood lemon yellow ... ;Tartrazine;FD & C Yellow No.5;C.I.Acid yellow 23;C.I.Food yellow 4( ... see below "more details data".Structure: Lemon yellow, Tartrazine, Food additives