You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3aS,6aS)-6-oxo-5-prop-2-enyl-2-(pyridin-4-ylmethyl)-1,3,4,6a-tetrahydropyrrolo[3,4-c]pyrrole-3a-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H19N3O3
assistant