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system
Please write the molecular formula of the molecule 5-[4-[4-(2-aminoethoxy)-3-hydroxyphenyl]-2-oxobut-3-enoxy]-14-[1-(cyclopentylamino)-2-hydroxyethyl]-1-[3-[4,5-dihydroxy-2-(hydroxymethyl)phenyl]prop-2-enoyl]-7-hydroxy-2-(hydroxymethyl)-11-(2-phenylethyl)-9,13-dioxatricyclo[6.4.2.04,14]tetradecane-5-carboxylic acid .
user
C51H64N2O15
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