5H-FURO(3',2':6,7)(1)BENZOPYRANO(3,4-c)PYRIDIN-5-ONE 5H-Furo(3',2':6,7)(1)benzopyrano(3,4-c)pyridin-5-one plus ultraviolet A radiation 5H-Furo(3',2':6,7)(1)benzopyrano(3,4-c)pyridin-5-one, thymidylyl-(5'-3')-2'-deoxy-, (17alpha,20E)- 85878-62-2 BRN 5046981 Pyrido(3,4-c)psoralen Pyrido(3,4-c)psoralen plus ultraviolet A radiation