Septum Bottle & Septum Vial Rubber Stoppers

These straight sided aluminum seal stoppers for serum-finished bottles and vials are used for research and pharmaceutical packaging applications. Universal gray chlorobutyl formulation passes Japanese, European and United States Pharmacopeia testing for globally marketed pharmaceutical products. The formulation contains no plasticizers, 2-mercapto-benzothiazole, nitrosamine precursors or natural rubber latex. Formulation is applicable to aqueous solutions with a pH range of 2 to 10.