Trioxsalen

**Definition:** 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.

**Tree numbers:** - D03.383.663.283.446.794.875 - D03.633.100.150.446.794.875 - D03.633.300.770.875

**Synonyms:** - Trioxisalenum - Trioxysalen - 4,5',8-Trimethylpsoralen - 2,5,9-Trimethyl-7H-furo(3,2-g)benzopyran-7-one