You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3,4-dihydroxypyrrolidin-1-yl)-[5-(3-hydroxyprop-1-ynyl)thiophen-3-yl]methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C12H13NO4S
assistant