SPIRO[6H-CYCLOHEPTA[B]FURAN-6,2'(3'H)-FURAN]-2,- 4(5H,7H)-DIONE,3'-(ACETYLOXY)-4',5',8,8A-TETRAHYDRO- 3,5',7-TRIMETHYL-,(2'S,3'S,5'S,7S,8AS)-
CAS No. 65405-87-0