5-oxo-6,9-dihydro-5H-benzo[a]cycloheptene-7-carboxylic acid
9-oxo-5,8-dihydro-benzo[7]annulene-7-carboxylic acid 9-keto-5,8-dihydrobenzo[7]annulene-7-carboxylic acid 9-oxo-5,8-dihydrobenzo[7]annulene-7-carboxylic acid
9-oxo-5,8-dihydrobenzo[7]annulen-7-carbonsäure acide 9-oxo-5,8-dihydrobenzo[7]annulène-7-carboxylic 9-オキソ-5,8-ジヒドロベンゾ[7]アンヌレン-7-カルボン酸
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