You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(4-chloropyrazol-1-yl)-2-methyl-N-[[4-(morpholin-4-ylmethyl)oxan-4-yl]methyl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H29ClN4O3
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