You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named [9-(8,14-dithia-1-azatetracyclo[7.7.1.02,7.013,17]heptadeca-2,4,6,9,11,13(17)-hexaen-11-yl)-6-(N-propylanilino)xanthen-3-ylidene]-[4-[2-(2-hydroxyethylamino)-2-oxoethyl]phenyl]-propylazanium is given. What is its corresponding molecular formula?
user
C49H47N4O3S2+
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