West Pharmaceutical Services
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20mm Lyophilization NovaPure® Ready-to-Sterilize Chlorobutyl 4432/50 Stoppers

Qty. 500 stoppers/bag

NovaPure® lyophilization stoppers are made from 4432/50 a premium quality chlorobutyl elastomer and laminated with FluroTec™ barrier film to help reduce particulate, limit drug interaction with the elastomer and reduce leachables. These components are provided washed (ready-to-sterilize) and 100% vision inspected. This stopper configuration can be used with European and American Blowback designed vials.. West item number: 19700320

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20mm Lyophilization NovaPure® Ready-to-Sterilize Chlorobutyl 4432/50 Stoppers

The NovaPure® brand is West’s premium line of components. Choose these stoppers if you need a ready-to-sterilize lyophilization stopper in a chlorobutyl formulation. 

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Master Specification

500 pieces per bag. 5 bags per carton.

West’s comprehensive Integrated Solutions Program offers expert testing to support drug product containment systems throughout the development process.  Our technical expertise for pharmaceutical packaging includes vials, stoppers and seals, with an in-depth understanding of regulations and market requirements, including USP <1207>.  A dedicated Project Management team will help to identify key stakeholders to provide consultation and the creation of a customized study design. 

Product is registered trademark of West Pharmaceutical Inc.