CAS NO. 38114-47-5 | (3S)-3Î²-(Acetyloxy)-4Î²-(angeloyloxy)-3aÎ²,4,5,6,6aÎ±,7,9aÎ±,9bÎ²-octahydro-6Î±-hydroxy-3,6,9-trimethylazuleno[4,5-b]furan-2(3H)-one |

(3S)-3Î²-(Acetyloxy)-4Î²-(angeloyloxy)-3aÎ²,4,5,6,6aÎ±,7,9aÎ±,9bÎ²-octahydro-6Î±-hydroxy-3,6,9-trimethylazuleno[4,5-b]furan-2(3H)-one

Isomontanolide	(3S)-3Î²-(Acetyloxy)-4Î²-(angeloyloxy)-3aÎ²,4,5,6,6aÎ±,7,9aÎ±,9bÎ²-octahydro-6Î±-hydroxy-3,6,9-trimethylazuleno[4,5-b]furan-2(3H)-one
(Z)-2-Methyl-2-butenoic acid [(3S)-3Î²-acetoxy-2,3,3aÎ²,4,5,6,6aÎ±,7,9aÎ±,9bÎ²-decahydro-6Î±-hydroxy-3,6,9-trimethyl-2-oxoazuleno[4,5-b]furan-4Î²-yl] ester