119560-28-0 3,3-(Benzylidene)-bis-(4-hydroxybergapten) 6,6'-(Phenylmethylene)bis(5-hydroxy-4-methoxy)-7H-furo(3,2-g)(1)benzopyran-7-one 7H-Furo(3,2-g)(1)benzopyran-7-one, 6,6'-(phenylmethylene)bis(5-hydroxy-4-methoxy)-