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-, (1a.alpha.,2a.beta.,3.beta.,6.beta.,6a.beta.,8aS*,8b.beta.,9R*)- 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.,3.beta.,6.beta.,6a.beta.,8aS*,8b.beta.,9S*)]- NSC129536 PICROTIN