You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-[[(2R)-4-(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)morpholin-2-yl]methyl]pyridazin-3-amine ?
user
C18H22N4O3
assistant