Kimble® Two-Leg Lyophilization Stoppers

These rubber stoppers are designed for use with an aluminum seal finish. The lyophilization style is for use with 13mm serum-finished bottles or vials. Universal gray chlorobutyl formulation meets USP, EP, and JP requirements for globally marketed pharmaceutical products. For research and pharmaceutical packaging applications. Contain no plasticizers, 2-mercapto-benzothiazole, nitrosamine precursors or natural rubber latex. Applicable to aqueous solutions with a pH range of 2 to 10. Material: Gray Butyl Rubber.