2H,6H-Pyrano(3,2-b)xanthen-6-one, 5,9,10-trihydroxy-2,2-dimethyl-

2H,6H-Pyrano(3,2-b)xanthen-6-one, 5,9,10-trihydroxy-2,2-dimethyl- · CAS 3811-29-8