186581-53-3
重氮甲烷
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7469-68-3
7-(benzylideneamino)-10-hydroxy-1,2,3-trimethoxy-6,7-dihydro-5H-benzo[a]heptalen-9-one
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2730-81-6
(7S)-7-(benzylideneamino)-1,2,3,9-tetramethoxy-6,7-dihydro-5H-benzo[a]heptalen-10-one