reaction mass of 1- (1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthyl) ethan-1-one-and 1 (1,2,3,4,6,7,8,8a-octahydro2,3,8,8-tetramethyl-2naphthyl ) ethan-1-one and 1-(1,2,3,8,8- tetramethyl-2-naphthyl) ethan -1-one (n°CE 915-730-3), D-limonene (n°CE227-813-5), alpha-pinene (n°CE 201-291-9)