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Benzoquinone is a quinone with a single benzene ring, of which there are only two:

  • 1,4-Benzoquinone, most commonly (also para-benzoquinone, p-benzoquinone, para-quinone, or just quinone)
  • 1,2-Benzoquinone, less commonly (also ortho-benzoquinone, o-benzoquinone, ortho-quinone)


It has been found in the rhizomes of Iris kemaonensis.[1]


  1. ^ Singh, N.; Mahmood, U.; Kaul, V.K.; Gupta, A.P.; Jirovetz, L. (January 2006). "A new alkylated benzoquinone from rhizomes of Iris kumaonensis.". Natural Product Research (Nat. Prod. Res.). 20 (1): 75–78. doi:10.1080/14786410500045721. PMID 16286313.