You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(6-chloro-1H-benzimidazol-2-yl)methyl]-1-[2-(2-methylphenyl)-1,3-thiazol-5-yl]methanamine by IUPAC nomenclature, provide its molecular formula.
user
C19H17ClN4S
assistant