4-ethyl-3-hydroxy-6-[5-methyl-4-(1-methyl-2-benzimidazolyl)-1,2-dihydropyrazol-3-ylidene]-1-cyclohexa-2,4-dienone
4-ethyl-3-hydroxy-6-[5-methyl-4-(1-methyl-2-benzimidazolyl)-1,2-dihydropyrazol-3-ylidene]-1-cyclohexa-2,4-dienone