5-(Benzoylamino)-4-hydroxy-3-((2-(4-(tert-pentyl)phenoxy)phenyl)azo)naphthalene-2,7-disulphonic acid;(3E)-5-(benzoylamino)-3-(2-{2-[4-(2-methylbutan-2-yl)phenoxy]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
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