5-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)[2-chloro-4-(dimethylamino)phenyl]methyl]-3-methylsalicylic acid

5-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)[2-chloro-4-(dimethylamino)phenyl]methyl]-2-hydroxy-3-methylbenzoic acid