You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule but-2-yne;carbanide;2,6-dimethyl-4a,9,9a,10-tetrahydroanthracene;2,6-dimethylanthracene;1,4-dimethylcyclopenta-1,3-diene;1,8-dimethyl-9H-fluorene;1,5-dimethylnaphthalene;2,6-dimethylnaphthalene;1,3-dimethyl-4,5,6,7-tetrahydro-2H-indene;ethane;2-methylbut-2-ene;prop-1-ene;1,4-xylene;yttrium into molecular formula.
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C222H329Y9-9
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