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Can you give the molecular formula of the molecule phenyl (1R,9S,12Z,16R,18S)-16-methyl-16-trimethylsilyloxy-17-oxa-8-azatetracyclo[7.7.2.01,18.02,7]octadeca-2,4,6,12-tetraen-10,14-diyne-8-carboxylate ?
user
C27H25NO4Si
assistant