You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 4-[6-[3-(1,3-thiazol-5-yl)propoxy]-1,2,4,5-tetrahydro-3-benzazepin-3-yl]butanoic acid ?
user
C20H26N2O3S
assistant