You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[[2-[(2-amino-4-carboxybutanoyl)amino]-3-sulfanylpropanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]pyrrolidine-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H30N4O8S
assistant