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-(2,2-dimethyl-3,4-dihydrochromen-4-yl)-2-methyl-3-(3-methyl-2-pyridin-3-ylbutyl)guanidine;hydroiodide .
user
C23H33IN4O
assistant