7253-35-2 Acid Blue 109 Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]-2-methylphenyl][4-(phenylamino)phenyl]methylene]-3-methyl-2,5-cyclohexadien-1-ylidene]-3-sulfo-, hydroxide, inner salt, monosodium salt C.I. Acid Blue 109 NSC51544