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system
For the molecule named [(12aS)-9-[[3-[[(12aS)-12-methoxysulfonyl-8-methyl-6-oxo-11,12,12a,13-tetrahydroindolo[1,2-b][2]benzazepin-9-yl]oxymethyl]-5-(3,3-dimethylbutanoylamino)phenyl]methoxy]-8-methoxy-6-oxo-11,12,12a,13-tetrahydroindolo[1,2-b][2]benzazepin-12-yl]methanesulfonic acid by IUPAC nomenclature, provide its molecular formula.
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C52H55N3O12S2
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