You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-methyl-1,3-di(propan-2-yl)-3a,4,5,6,7,8,9,9a-octahydrocycloocta[d]imidazole-2-thione into its molecular formula.
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C16H30N2S
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