You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-(cyclopropylmethyl)-2-methylimidazol-3-ium-1-yl]ethyl 2-(2-hydroxy-3H-thiophen-2-yl)-2-phenylacetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H27N2O3S+
assistant