You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[(2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1H-pyrimidine-2,4-dione;2-hydroxyethyl(trimethyl)azanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H26N3O7+
assistant