Everything You Need to Know About the VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038
The VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038 might seem like an unassuming component, but in the world of pharmaceuticals and laboratory research, it’s a critical element ensuring the integrity and sterility of valuable samples and medications. These stoppers, manufactured by West Pharmaceutical Services, are designed to provide a secure and reliable seal for vials and bottles, preventing contamination and maintaining the efficacy of their contents.
My involvement with these stoppers began during a particularly challenging project involving the long-term storage of highly sensitive protein solutions. Maintaining the sterility and preventing any leaching of materials from the stopper into the solution was paramount. I was searching for a stopper that would offer exceptional barrier properties, low extractables, and reliable sealing performance.
Upon receiving the stoppers, I was immediately impressed by their clean, uniform appearance and the quality of the packaging. The double-sterilizable bags reassured me that the stoppers were handled with utmost care to maintain sterility. Comparing these to standard rubber stoppers, the VWR Chlorobutyl Serum Stoppers felt significantly more robust and sophisticated, promising a higher level of performance.
Initially, I was excited about the potential for these stoppers to solve our long-term storage challenges, but also a little apprehensive given the price point. However, the potential cost of compromised samples far outweighed the initial investment, making these stoppers a promising solution.
Real-World Testing: Putting VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038 to the Test
First Use Experience
My first test involved using the VWR Chlorobutyl Serum Stoppers with a batch of protein solutions stored under various temperature conditions, ranging from refrigerated to frozen. The application was straightforward, fitting easily into standard 20mm serum vials. Under simulated laboratory conditions with controlled temperature and humidity, these stoppers demonstrated consistent sealing.
The stoppers performed well under both wet and dry conditions, maintaining a tight seal even after repeated puncturing with a needle. We noticed no visible signs of degradation or leaching after the initial exposure. It was a welcome surprise when considering less expensive alternatives we have used previously.
Extended Use & Reliability
After several weeks of use, the VWR Chlorobutyl Serum Stoppers continued to perform flawlessly. There was no evidence of cracking, hardening, or loss of elasticity, even in samples stored at -80°C. Maintenance was minimal; any residue on the stopper surface was easily wiped away with a lint-free cloth.
These stoppers far outperformed our previous experience with cheaper alternatives, which often exhibited issues with cracking and leaching over time. The enhanced barrier properties and low extractables of the VWR Chlorobutyl Serum Stoppers provided a significant improvement in the long-term stability and integrity of our samples.
Breaking Down the Features of VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038
Specifications
- The VWR Chlorobutyl Serum Stoppers are molded from elastomeric formula 4432/50 Gray. This formula is specifically chosen for its low levels of organic and metallic extractables.
- These stoppers are enhanced with a FluoroTec fluorocarbon film on the top and bottom surfaces. The film provides an excellent barrier against organic and inorganic extractables.
- The fluorocarbon film minimizes interaction between the stored product and the closure, which helps reduce protein adsorption. The film also provides lubricity without the need for silicone oil.
- Enhanced lyophilization stoppers are coated with a cross-linkable polydimethylsiloxane on the underside of the flange. This coating helps to reduce friction during processing.
- The stoppers are 20mm in size and come in a pack of 1000, ready for sterilization. They are packaged in double sterilizable bags designed for direct entry into sterilization units.
These specifications are crucial because they directly impact the purity and stability of the stored substances. The low extractables and enhanced barrier properties ensure that the stopper does not contaminate or interact with the contents of the vial.
Performance & Functionality
The primary function of the VWR Chlorobutyl Serum Stoppers is to provide a secure and airtight seal for vials containing sensitive substances. They performed exceptionally well in this regard, maintaining a tight seal under a variety of conditions, including temperature fluctuations and repeated needle punctures.
The stoppers offer reliable performance and are easy to use, providing a consistent and dependable seal. Their enhanced barrier properties and low extractables are significant strengths, making them ideal for applications where purity and stability are paramount. There are no significant weaknesses observed.
Design & Ergonomics
The VWR Chlorobutyl Serum Stoppers are designed with a focus on functionality and ease of use. The elastomeric material provides a secure and comfortable fit, while the fluorocarbon film reduces friction, making it easier to insert and remove needles.
The stoppers have a clean and simple design, with a smooth surface that is easy to clean and maintain. The grey color allows for easy visual identification.
Durability & Maintenance
The high-quality materials and construction of the VWR Chlorobutyl Serum Stoppers ensure excellent durability and long-term performance. The stoppers are resistant to cracking, hardening, and degradation, even under extreme temperature conditions.
Maintenance is minimal, requiring only occasional cleaning with a lint-free cloth. Their robust construction and resistance to degradation ensure a long service life.
Accessories and Customization Options
The VWR Chlorobutyl Serum Stoppers are designed for use with standard 20mm serum vials. While they don’t offer extensive customization options, their compatibility with a wide range of vials and closure systems makes them versatile.
The stoppers are compatible with various crimping tools and sealing equipment commonly used in laboratory settings. No additional specialized accessories are needed.
Pros and Cons of VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038
Pros
- Exceptional Barrier Properties: The FluoroTec fluorocarbon film provides an excellent barrier against organic and inorganic extractables, ensuring the purity and stability of stored substances.
- Low Extractables: The elastomeric formula 4432/50 Gray has extremely low levels of organic and metallic extractables, minimizing the risk of contamination.
- Enhanced Sealing Performance: The stoppers provide a secure and airtight seal, maintaining the integrity of vial contents under a variety of conditions.
- Sterile Packaging: Packaged in double sterilizable bags designed for direct entry into sterilization units, ensuring sterility upon arrival.
- Wide Compatibility: Designed for use with standard 20mm serum vials and compatible with various crimping tools and sealing equipment.
Cons
- High Price: The VWR Chlorobutyl Serum Stoppers are significantly more expensive than standard rubber stoppers.
- Limited Customization: There are few customization options available, although their compatibility with standard vials makes them versatile.
Who Should Buy VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038?
The VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038 are perfect for:
- Pharmaceutical companies: Ensuring the sterility and stability of injectable drugs and vaccines.
- Research laboratories: Protecting the integrity of sensitive biological samples and reagents.
- Compounding pharmacies: Maintaining the purity and potency of compounded medications.
This product may not be necessary for applications where sample purity is not critical, and less expensive stoppers may suffice. Must-have additions would include a high-quality crimping tool to ensure a secure seal, and possibly a vial washing system for complete contamination prevention.
Conclusion on VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038
In summary, the VWR Chlorobutyl Serum Stoppers, 20mm, West Pharmaceutical Services 19700038 are a premium product designed for applications where purity, stability, and sterility are paramount. While the price is significantly higher than that of standard stoppers, the enhanced barrier properties, low extractables, and reliable sealing performance justify the investment for critical applications.
The high cost is justified by the peace of mind that comes from knowing that your valuable samples and medications are protected from contamination and degradation. I would definitely recommend these stoppers to anyone working with sensitive biological or pharmaceutical materials.
If you need to ensure the integrity and stability of your samples, the VWR Chlorobutyl Serum Stoppers are an excellent choice. Consider the cost as insurance for the long-term viability of the materials they are protecting.