title: Structure of catalpalactone, a new phthalide from Catalpa wood.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007783:Lactones / Q000032:analysis*; D010795:Phthalic Acids / Q000032:analysis*; D013057:Spectrum Analysis; D014934:Wood / Q000032:analysis*
chemical_list: D007783:Lactones; D010795:Phthalic Acids