You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 2-(furan-2-ylmethyl)-3-[(2-methyl-5-thiophen-2-ylthieno[2,3-d]pyrimidin-4-yl)amino]propan-1-ol ?
user
C19H19N3O2S2
assistant