You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R)-N-cyclopropyl-2-[[5-[(2R)-1-(cyclopropylamino)-1-oxopropan-2-yl]sulfanyl-1,3,4-thiadiazol-2-yl]sulfanyl]propanamide by IUPAC nomenclature, provide its molecular formula.
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C14H20N4O2S3
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