You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1Z)-1-[(6Z)-6-butylidenecyclohexa-2,4-dien-1-ylidene]-2,2-dimethylpropan-1-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H23N
assistant