10257-13-3 Azuleno(6,5-b)furan-2,5-dione, 3,3a,4,4a,7a,8,9,9a-octahydro-4-hydroxy-3,4a,8-trimethyl-, (3R-(3alpha,3aalpha,4beta,4abeta,7abeta,8alpha,9abeta))- Desacetyl-1-epiisotenulin Desacetyl-1-isotenulin