You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule ethyl (2Z)-2-[[5-(3-formyl-4,5-dimethylphenyl)furan-2-yl]methylidene]-6-methyl-3-methylidene-4-(4-propan-2-ylphenyl)-3a,4-dihydrofuro[2,3-b]pyran-1-ium-5-carboxylate .
user
C35H35O6+
assistant