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system
For the molecule named ethane;1-methyl-2-(2-methylphenyl)-[1]benzofuro[2,3-b]pyridin-1-ium;1-methyl-2-(2-methylphenyl)-[1]benzofuro[3,2-b]pyridin-1-ium;2-methyl-3-(2-methylphenyl)-[1]benzofuro[3,2-c]pyridazin-2-ium;2-methyl-3-(2-methylphenyl)-[1]benzothiolo[3,2-c]pyridazin-2-ium;2-methyl-3-(2-methylphenyl)-[1]benzothiolo[3,2-c]pyridin-2-ium;6-methyl-7-(2-methylphenyl)furo[2,3-c]pyridin-6-ium;6-methyl-7-(2-methylphenyl)furo[2,3-d]pyridazin-6-ium;3-methyl-4-(2-methylphenyl)furo[3,2-d]pyrimidin-3-ium;6-methyl-7-(2-methylphenyl)thieno[2,3-c]pyridin-6-ium;6-methyl-7-(2-methylphenyl)thieno[2,3-d]pyridazin-6-ium;3-methyl-4-(2-methylphenyl)thieno[3,2-d]pyrimidin-3-ium;2,7,7-trimethyl-1-(2-methylphenyl)cyclopenta[c]pyridin-2-ium;3,5,5-trimethyl-4-(2-methylphenyl)cyclopenta[d]pyridazin-3-ium by IUPAC nomenclature, provide its molecular formula.
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C266H353N20O6S5+13
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