You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(6-chloronaphthalen-2-yl)sulfonyl-1-[[1-(2-methylpyridin-4-yl)piperidin-4-yl]amino]-6-oxopiperazine-2-carboxylic acid;dihydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H30Cl3N5O5S
assistant