You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 4-[[[4-(2,3-dihydro-1H-inden-2-ylamino)-6-methoxy-1,3,5-triazin-2-yl]amino]methyl]benzoic acid ?
user
C21H21N5O3
assistant