57458-46-5 BENZ(a)AZULEN-6,9-IMINE, 4b,5,6,7,8,9,9a-OCTAHYDRO-11-METHYL-, (4bR-(4b-alpha,6- BRN 1573489 Benz(a)azulen-6,9-imine, 4b,5,6,7,8,9,9a-octahydro-11-methyl-, (4bR-(4b-alpha,6-beta,9-beta,9a-alpha))-