You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (2Z)-2-[[2-butan-2-yl-4-(3-chloropropoxy)-5-methoxyphenyl]-chloromethylidene]but-3-enenitrile using the IUPAC nomenclature.
user
C19H23Cl2NO2
assistant