You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(2-hydroxyethyl)-1-[(8-methyl-2-oxo-1H-quinolin-3-yl)methyl]-3-(3-morpholin-4-ylpropyl)thiourea is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H30N4O3S
assistant