All

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 D02 Organic Chemicals D009930 +
  D02.806 Quinones D011809 +
   D02.806.250 Benzoquinones D016227 +
    D02.806.250.180 Carbazilquinone D002225 
 D03 Heterocyclic Compounds D006571 +
  D03.383 Heterocyclic Compounds, 1-Ring D006573 +
   D03.383.097 Azirines D001389 +
    D03.383.097.217 Aziridines D001388 +
     D03.383.097.217.300 Carbazilquinone D002225