You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (E)-4-butyl-5-ethyldec-4-en-3-one;4,6-dibutyl-3,5-diethyl-2-methyl-5-pentylcyclohex-2-en-1-one;hexadeca-2,4,6,8,10,12,14-heptayne;octan-3-one .
user
C80H102O3
assistant