1,4-Naphthalenedione, 2-hydroxy- 1,4-Naphthoquinone, 2-hydroxy- 2-HYDROXY-1,4-NAPTHOQUINONE 2-Hydroxy-1,4-naphthalenedione 2-Hydroxy-1,4-naphthoquinone 2-Hydroxynaphthoquinone 4-08-00-02360 (Beilstein Handbook Reference) 68310-00-9 83-72-7 AI3-12099 BRN 1565260 C.I. 75480 C.I. Natural Orange 6 CCRIS 6248 EINECS 201-496-3 Flower of paradise HANA Henna Henna leaves Lawson Lawsone Lawsonia alba Mehendi Mendi NSC 27285 NSC 8625