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system
Provide the molecular formula for the IUPAC named substance tert-butyl 2-[(1R,2S,13R,14S,15R,16R,17S)-15,17-dimethyl-16-tri(propan-2-yl)silyloxy-18-oxa-10-thiapentacyclo[12.3.1.02,13.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]acetate .
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C33H50O4SSi
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