2-ethylnaphtho[1,2-b]furan-4,5-dione
2-ethyl-benzo[g]benzofuran-4,5-dione 2-ethylbenzo[g]benzofuran-4,5-quinone 2-ethylbenzo[g][1]benzoxole-4,5-dione
2-ethylbenzo[g][1]benzofuran-4,5-dion 2-éthylbenzo[g][1]benzofuran-4,5-dione 2-エチルベンゾ[g][1]ベンゾフラン-4,5-ジオン
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