You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
sodium;[5-[(1S,2S)-2-[(11R,18S,20R,25S,26S)-3-[(1R)-3-amino-1-hydroxy-3-oxopropyl]-18-[(6-heptoxynaphthalen-2-yl)carbamoylamino]-11,20,25-trihydroxy-15-[(1R)-1-hydroxyethyl]-26-methyl-2,5,8,14,17,23-hexaoxo-1,4,7,13,16,22-hexazatricyclo[22.3.0.09,13]heptacosan-6-yl]-1,2-dihydroxyethyl]-2-hydroxyphenyl] sulfate is the IUPAC name of a molecule. Please give its molecular formula.
user
C53H72N9NaO21S
assistant