21416-53-5 3,6-Methano-8H-1,5,7-trioxacyclopenta(ij)cycloprop(a)azulene-4,8(3H)-dione, hexahydro-2a-hydroxy-9-(1-hydroxy-1-methylethyl)-8b-methyl-, (1aR-(1a alpha,2a beta,3beta,6beta,6a beta,8aS*,8b beta,9S*))- AI3-41570 BRN 5302552 NSC 129536 Picrotin Picrotin (VAN) (8CI) Picrotin (from Anamirta cocculus seed)