You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-ethyl-2-(2-hydroxyethylsulfanylmethyl)-5,5-dimethyl-3,6-dihydro-1H-benzo[h]quinazolin-4-one .
user
C19H26N2O2S
assistant