2h,8h-benzo[1,2-b:3,4-b']dipyran-2-one, 9,10-dihydro-8,8-dimethyl- (en)

2h,8h-benzo[1,2-b:3,4-b']dipyran-2-one, 9,10-dihydro-8,8-dimethyl- (en) · CAS 2221-66-1