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(24E)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,9,11-tetraoxo-8-{[2-(6-phenoxy-1,2-dihydropyridazin-3-yl)hydrazino]methylidene}-1,2,8,9-tetrahydro-6H-2,7-(epoxypentadeca[1,11,13 related products: