You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[2-(acetyloxymethyl)-5-(5-carbamoyl-4-oxo-7-propylpyrazolo[4,3-d]triazin-3-yl)-4-(carboxymethyl)oxolan-3-yl]acetic acid .
user
C19H24N6O9
assistant