You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-hydroxy-3-(4-hydroxyphenyl)-2-(2-methoxy-1,3-thiazol-4-yl)-5-propylbenzenecarboximidamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H21N3O3S
assistant