You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(3,4-dihydro-2H-chromen-4-yl)-2-[[1-[(2-ethyl-1,3-thiazol-4-yl)methyl]piperidin-4-yl]methyl]guanidine into its molecular formula.
user
C22H31N5OS
assistant