37936-58-6 Azuleno(4,5-b)furan-2(3H)-one, 3a,4,6a,7,8,9,9a,9b-octahydro-6-methyl-3,9-bis(methylene)-, (3aS-(3aalpha,6aalpha,9aalpha,9bbeta))- (9CI) Eremanthin Eremanthine NSC 321215 Vanillosmin