IMPPAT Phytochemical information: 
8,8-dimethyl-2H,8H-pyrano[2,3-f]chromene-2,9(10H)-dione
8,8-dimethyl-2H,8H-pyrano[2,3-f]chromene-2,9(10H)-dione
Patents
S. No.Patent identifier
1EP96906599B1