128255-38-9

Spiro[2,6-dioxabicyclo[3.1.0]hexane-4,2'-[2H]inden]-3-one,1',3',3'a,4',5',6'-hexahydro-3'a,4',5-trimethyl-, [1S-[1a,4b(3'aS*,4'R*),5a]]-