Synonyms: 4H-10,11a-Methano-2H-benzofuro[2,3-f][2]benzopyran-7-aceticacid,9-(acetyloxy)-4-(3-furanyl)-4a,5,6,6a,6b,7,8,9,10,10a-decahydro-10,10a-dihydroxy-4a,6b,8,8-tetramethyl-12-(2-methyl-1-oxopropoxy)-2-oxo-,methyl ester, [4R-(4a,4aa,6aa,6ba,7a,9b,10a,10aa,11ab,12R*)]-; (+)-Utilin C; Utilin C