The chemical Xanthotoxol has a known molecular formula of C11-H6-O4. Synonyms may include: 5-19-06-00014 (Beilstein Handbook Reference), BRN 0189491, 6,7-Dihydroxy-5-benzofuranacrylic acid gamma-lactone, EINECS 217-923-1, 9-Hydroxy-7H-furo(3,2-g)(1)benzopyran-7-one, 8-Hydroxypsoralen, 8-Hydroxypsoralene, NSC 401269, Psoralen, 8-hydroxy-, Xanthotoxol (6CI) (ChemID).