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system
Please write the molecular formula of the molecule 3-[7-methyl-1,3,5,9,11,13,15-heptakis(2-methylpropyl)-13-trimethylsilyloxy-2,4,6,8,10,12,14,16,17,18,19-undecaoxa-1,3,5,7,9,11,13,15-octasilatetracyclo[9.5.1.13,9.15,15]nonadecan-7-yl]propyl 2-methylprop-2-enoate .
user
C39H86O14Si9
assistant