10386-19-3 7H-Furo[3,2-g][1]benzopyran-7-one, 9-(acetyloxy)- 7H-Furo[3,2-g][1]benzopyran-7-one, 9-hydroxy-, acetate 8-Acetoxypsoralene 9-Acetoxyfuro-(3,2-g)-coumarin 9-Acetoxypsoralen NSC331793 Xanthotoxol acetate