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system
Provide the molecular formula for the IUPAC named substance (4S,5S)-4-hydroxy-5-[(1'S,5'R)-5'-hydroxyspiro[2,4-dioxatricyclo[7.3.1.05,13]trideca-1(12),5,7,9(13),10-pentaene-3,2'-cyclohexane]-1'-yl]oxolan-2-one .
user
C20H20O6
assistant