You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1E,4E)-1-[4-(dimethylamino)phenyl]-5-[4-[3-[2-sulfanylethyl-[2-(2-sulfanylethylamino)ethyl]amino]propoxy]phenyl]penta-1,4-dien-3-one;oxygen(2-);technetium-99(7+) by IUPAC nomenclature, provide its molecular formula.
user
C28H39N3O3S2Tc+5
assistant