You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (1E,4E)-1-(1-butan-2-ylimidazol-2-yl)-5-(5-methyl-1,2-oxazol-3-yl)penta-1,4-dien-3-one is given. What is its corresponding molecular formula?
user
C16H19N3O2
assistant