(3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyl-2,4,5,5a,7,8,9,9b-octahydro-1H-naphtho[7,8-b]furan (3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyl-2,4,5,5a,7,8,9,9b-octahydro-1H-benzo[e]benzofuran W347108_ALDRICH ZINC01043941 (−)-Ambroxide 1,5,5,9-Tetramethyl-13-oxatricyclo[8.3.0.04,9]tridecane 379220_ALDRICH