You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
azanium;3-amino-4-thiophen-2-yl-6-(trifluoromethyl)furo[2,3-b]pyridine-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H10F3N3O3S
assistant