You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethane;(E)-3-[4-[[4-[(3E,5Z)-hepta-1,3,5-trien-3-yl]triazol-1-yl]methyl]phenyl]-N-hydroxyprop-2-enamide into its molecular formula.
user
C21H26N4O2
assistant