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20 mm Vial Stoppers - Grey Butyl

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Price: Starting at $0.22

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Serum Vial Stoppers - gray chlorobutyl formulation meet USP, EP and JP requirements for globally marketed pharmaceutical products. Made of natural rubber and contains no latex, plasticizers, 2-mercapto-benzothaizole, or nitrosamine precursors. These pharmaceutical grade serum vial stoppers can withstand a pH range from 2 thru 10.