You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-[2-(4-ethyl-6-oxo-1,3-diazinan-2-yl)-5-methylpyrazol-3-yl]-3-[(4-methoxyphenyl)methyl]urea .
user
C19H26N6O3
assistant