Benzenebutanoic acid,a-[3-[[[4-[4-(ethylimino)-2,5-cyclohexadien-1-ylidene]-4,5-dihydro-5-oxo-1H-pyrazol-3-yl]carbonyl]amino]-4-hydroxyphenoxy]-4-[(2-methyl-1-oxo-2-propenyl)amino]-
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