82137-36-8;AC1L4KMT;[7-(2,2,3,3,4,4,4-heptafluorobutanoylamino)-9H-fluoren-4-yl] 2,2,3,3,4,4,4-heptafluorobutanoate;7-[(2,2,3,3,4,4,4-heptafluorobutanoyl)amino]-9H-fluoren-4-yl heptafluorobutanoate
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