2H-Pyran-2-ol, 4-chloro-6-(2-chloro-1-methylethenyl)-2-(dibromomethyl)-5,6-dihydro-3-methyl- 2H-Pyran-2-ol, 4-chloro-6-(2-chloro-1-methylethenyl)-2-(dibromomethyl)-5,6-dihydro-3-methyl-, [2R-[2.alpha.,6.beta.(Z)]]- 63023-59-6 COSTATONE NSC294580