You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
8-[[3-[[5,11-bis(sulfanylidene)-1,15,18-trioxa-4,6,10,12-tetrazacycloicos-8-yl]methyl]-5-tert-butylphenyl]methyl]-1,15,18-trioxa-4,6,10,12-tetrazacycloicosane-5,11-dithione is the IUPAC name of a molecule. Please give its molecular formula.
user
C38H66N8O6S4
assistant