You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[2-(2H-indazol-3-yl)ethynyl]aniline;4-[2-(2H-indazol-3-yl)ethynyl]aniline;3-[2-(3-methylimidazol-4-yl)ethynyl]-2H-indazole;3-(2-phenylethynyl)-2H-indazole;3-(2-pyridin-4-ylethynyl)-2H-indazole into molecular formula.
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C72H51N15
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