title: A new sensitizing quinone from lady slipper (Cypripedium calceolus).
mesh_terms: D000818:Animals; D003460:Crystallization; D003877:Dermatitis, Contact; D006168:Guinea Pigs; D008958:Models, Molecular; D008968:Molecular Conformation; D009285:Naphthoquinones / Q000302:isolation & purification; D010944:Plants / Q000032:analysis*
chemical_list: D009285:Naphthoquinones