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What is the molecular formula of the compound with this IUPAC name 2-[bis(2-hydroxyethyl)amino]ethanol;4-[[1-hydroxy-6-[(5-hydroxy-6-phenyldiazenyl-7-sulfonaphthalen-2-yl)carbamoylamino]-3-sulfonaphthalen-2-yl]diazenyl]benzoic acid ?
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C52H69N9O20S2
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