Synonyms: 5H-Dibenzo[b,h]fluorene-5,11,13-trione,1,4,6,7,10-pentahydroxy-3-(1-hydroxy-4-methyl-3-pentenyl)-12-(3-methyl-2-butenyl)-,(R)-; 5H-Dibenzo[b,h]fluorene-5,11,13-trione,1,4,6,7,10-pentahydroxy-3-[(1R)-1-hydroxy-4-methyl-3-pentenyl]-12-(3-methyl-2-butenyl)-(9CI); Shikometabolin A