You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[(5Z)-2,4-dioxo-5-(pyridin-4-ylmethylidene)-1,3-thiazolidin-3-yl]-N-(3-methylphenyl)acetamide ?
user
C18H15N3O3S
assistant