Aroclor-1254 or Phenobarbital/5, 6-Benzoflavone induced Sprague Dawley male rat liver S9 lyophilized with NADPH-regenerating system cofactors and phosphate buffer. To use, simply reconstitute with the labeled volume of ice-cold, sterile, purified water. Available as 5%, 10% and 30% S9 Mix. Freeze dried using a proprietary process that confers exceptional stability. Especially useful where an ultra-low freezer is not available and where dry ice shipments are difficult or prohibitively expensive. Ready for use after reconstitution with the labeled volume of cold, sterile, purified water. MOLTOX S9 preparations and cofactor reagents for use in metabolic activation studies are manufactured to rigorous standards of quality and performance and are used by leading industrial, government and academic laboratories worldwide. *Non Returnable*