You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N,N-dimethyl-2-[[(2-methylprop-2-enylamino)-[(2-phenyl-2-pyrrolidin-1-ylethyl)amino]methylidene]amino]acetamide;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H34IN5O
assistant