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 [3-azido-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl (2-ethoxy-3-hexadecoxypropyl) hydrogen phosphate .
user
C31H56N5O9P
assistant