You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2S)-1-[3-[(2-aminophenyl)sulfonyl-methylamino]propylamino]-4-methyl-1-oxopentan-2-yl]-6-chloroimidazo[1,2-b]pyridazine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H30ClN7O4S
assistant