You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(2S)-2-[(2S)-1-methylpyrrolidin-2-yl]pyrrolidin-1-yl]-[1-(thiophen-2-ylmethyl)pyrrol-2-yl]methanone into its molecular formula.
user
C19H25N3OS
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