You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-ethyl-3-iodo-8H-pyrano[3,2-c]pyridine-2,5,7-trione;4-ethyl-3-(2-phenylethynyl)-8H-pyrano[3,2-c]pyridine-2,5,7-trione is the IUPAC name of a molecule. Please give its molecular formula.
user
C46H34IN3O12
assistant