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What is the molecular formula of the molecule identified by 5-amino-4-hydroxy-3-[[2-methoxy-5-(2-sulfooxyethylsulfonyl)phenyl]diazenyl]-6-[[4-(2-sulfooxyethylsulfonyl)phenyl]diazenyl]naphthalene-2,7-disulfonic acid ?
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C27H27N5O20S6
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