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7,7-dimethyl-5,6-dihydro-4H-benzo[c]thiophene 7,7-dimethyl-5,6-dihydro-4H-isobenzothiophene 7,7-dimethyl-5,6-dihydro-4H-2-benzothiophene 7,7-dimethyl-5,6-dihydro-4H-2-benzothiophen 7,7-diméthyl-5,6-dihydro-4H-2-benzothiophéne 7,7-ジメチル-5,6-ジヒドロ-4H-2-ベンゾチオフェン
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