Trioxsalen

2,5,9-Trimethyl-7H-furo(3,2-g)benzopyran-7-one; 4,5',8-Trimethylpsoralen; ICN Brand of Trioxsalen; NSC-71047; Trioxisalenum; Trisoralen; NSC 71047; NSC71047
Pigmenting photosensitizing agent obtained from several plants, mainly Psoralea corylifolia. It is administered either topically or orally in conjunction with ultraviolet light in the treatment of vitiligo.