You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3Z,5E,7E,9E)-10-(1,2-dimethylindol-3-yl)-3-(2-iodophenyl)-N-methyldeca-3,5,7,9-tetraen-2-imine is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H27IN2
assistant