You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-[[4-[(2,3-dihydro-1H-inden-1-ylamino)methyl]phenyl]methyl]-N-(pyridin-2-ylmethyl)-N'-[2-(pyridin-2-ylmethylamino)ethyl]ethane-1,2-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H40N6
assistant