23599-46-4 25795-45-3 Naphtho(1,2-c)furan-3(1H)-one, 5-(acetyloxy)-5,5a,6,7,8,9,9a,9b-octahydro-9b-hydroxy-6,6,9a-trimethyl-, (5R-(5alpha,5abeta,9aalpha,9bbeta))-