You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-hydroxy-3-[2-hydroxy-14-(1-hydroxyethyl)-18-methyl-13,17-dioxo-15,16-dithia-10,12,18-triazapentacyclo[12.2.2.01,12.03,11.04,9]octadeca-4,6,8-trien-3-yl]-14,18-dimethyl-15,16-dithia-10,12,18-triazapentacyclo[12.2.2.01,12.03,11.04,9]octadeca-4,6,8-triene-13,17-dione .
user
C31H30N6O7S4
assistant