You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[(2R)-butan-2-yl]-6-hydroxy-5-(2-morpholin-4-ylethyliminomethyl)-2-sulfanylidenepyrimidin-4-one into its molecular formula.
user
C15H24N4O3S
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