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system
Provide the molecular formula for the IUPAC named substance (1S,17R,18S,19R,21S)-13-hydroxy-6,17-dimethoxy-3-methyl-19-[5-(sulfanylmethyl)-1,3-dioxan-2-yl]spiro[16,20,22-trioxahexacyclo[17.2.1.02,15.05,14.07,12.017,21]docosa-2(15),3,5(14),6,12-pentaene-18,2'-oxirane]-11-one .
user
C28H30O10S
assistant