You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tetrasodium;5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-3-[(5-nitro-2-oxidophenyl)diazenyl]-4-oxidonaphthalene-2,7-disulfonate;chromium(3+);hydron The above is the IUPAC name of a molecule. Write its molecular formula.
user
C38H19Cl2CrN16Na4O20S4
assistant