You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-[2-[3-(4-benzoyl-1-methylcyclohepta-2,4,6-trien-1-yl)sulfanylpropanoyloxymethyl]-2-(3-sulfanylpropanoyloxymethyl)butoxy]-3-sulfanylpropylidene]oxidanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H39O7S3+
assistant