You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named ethyl 3-hydroxy-5-(4-methoxyphenyl)-7,8-dimethyl-2-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-4-ium-6-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C24H25N2O4S+
assistant