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 [(1R,9R,19S,20S,22R,23S,24S,25S,27R)-27-(4-amino-2-oxopyrimidin-1-yl)-4,6,20,22,24,25-hexahydroxy-23-[(E,3S)-3-hydroxyoct-1-enyl]-4,6,12,17-tetraoxo-3,5,7,11,26-pentaoxa-4lambda5,6lambda5-diphosphabicyclo[17.6.2]heptacosan-9-yl] (Z)-octadec-11-enoate .
user
C50H85N3O19P2
assistant