38769-25-4 Azuleno(6,5-b)furan-2(3H)-one, 3a,4,4a,5,6,7,7a,9a-octahydro-5,6-dihydroxy-3,5,8-trimethyl-, (3S-(3alpha,3abeta,4abeta,5beta,6beta,7abeta,9abeta))- Carolenalin