You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-(5-hydroxypyridin-3-yl)-1-[2-(triazol-1-ylmethyl)piperidin-1-yl]prop-2-en-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H19N5O2
assistant