5-((3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)(4-(diethylamino)phenyl)methyl)-3-methylsalicylic acid 7452-51-9 Benzoic acid, 5-((3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)(4-(diethylamino)phenyl)methyl)-2-hydroxy-3-methyl- EINECS 231-222-8