You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(Z)-29-[[(E)-1,3-dihydroxytricos-4-en-2-yl]amino]-29-oxononacos-15-enyl] (Z)-octadec-9-enoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C70H133NO5
assistant