You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
sodium;[(2R,3S,4S,5R)-5-(2,6-diaminopurin-9-yl)-4-fluoro-3-hydroxy-4-methyloxolan-2-yl]methoxy-[[2-[(Z)-heptadec-8-enoxy]-2-oxoethyl]amino]phosphinate is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H50FN7NaO7P
assistant