You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3Z)-5-bromo-3-[(3Z)-3-butoxyimino-1H-indol-2-ylidene]-1H-inden-2-one;(3Z)-5-bromo-3-[(3Z)-3-(2-piperazine-1,4-diium-1-ylethoxyimino)-1H-indol-2-ylidene]-1H-inden-2-one;methane;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C66H68Br3ClN8O6+2
assistant