109428-60-6 4,7-Epoxy-1H-indene-1,3(2H)-dione, hexahydro-, (3a-alpha,4-beta,7-beta,7a-alpha)- Hexahydro-4,7-epoxy-1H-indene-1,3(2H)-dione, (3a-alpha,4-beta,7-beta,7a-alpha)-