DURAN® Bromobutyl Rubber Stopper, for GL 25 or GL 45 Laboratory bottles
straight plug, grey
- Bromobutyl rubber elastomer conforms with EP 3.2.9 Type I closure for chemical and penetration tests. Not made with natural rubber latex.
- Gas tight seal provides a controlled environment inside the bottle
- Lot specific Certificate of Conformance (CoC) available
- A Type III Packaging Material DMF (#35811) for these products has been filed with the FDA
- Elastic material for effective sealing and reliable self-sealing after needle piercing (21-gauge “21G” or smaller)
- Multiple punctures providing easy access to the contents with a syringe
- Stopper shapes and material properties optimised to fit DURAN® GL 25 or GL 45 bottles
- Suitable for autoclaving / steam sterilising at 121 °C for 20 minutes
- Wide usable temperature range: -50 to +121 °C
- Septum for Head-space analysis
Products

| Catalog No | Thread | Material | Diameter d (mm) | Height h (mm) | Quantity | |
|---|---|---|---|---|---|---|
| 292061301 | GL 25 | BIIR | 22.5 | 12 | 10 | Find a distributor |
| 292062803 | GL 45 | BIIR | 41 | 21 | 10 | Find a distributor |
Specifications
Product specifications are found on the product detail pages. Click on the product catalog number in the table above to view the individual product specifications.
Product Overview
DURAN® bromobutyl rubber closures provide a gas tight seal for GL 25 or GL 45 glass laboratory bottles. As a material Bromobutyl rubber is essentially impermeable to most gases, and the stopper provides a controlled environment inside the glass bottle for oxygen sensitive materials. Useful for maintaining anaerobic culture conditions. Bromobutyl rubber allows for multiple punctures providing easy access to the contents with a syringe. A Type III Packaging Material DMF (#35811) for these products has been filed with the FDA. Citations and Research papers: A stable isotope assay with 13C-labeled polyethylene to investigate plastic mineralization mediated by Rhodococcus ruber Researchers @NIOZatSea used 100mL DURAN® GL 45 bottles with bromobutyl stoppers 292062803 to allow repeated headspace measurements https://doi.org/10.1016/j.marpolbul.2022.114369 Evaluation of Anaerobic Co-Digestion to Enhance the Efficiency of Livestock Manure Anaerobic Digestion Researchers @realkgu used 0.5L DURAN® bottles with bromobutyl stoppers for BMP Test with a N2 gas anaerobic atmosphere https://doi.org/10.3390/su11247170 Rectinema subterraneum sp. nov, a chemotrophic spirochaete isolated from the deep terrestrial subsurface Researchers @USC performed cultivation in a 1 L DURAN® bottle stoppered with Bromobutyl Rubber Stopper under an atmosphere of N2/CO2 (80:20) at 30 °C https://doi.org/10.1099/ijsem.0.004339 Short-term effects of macrophyte removal on emission of CO2 and CH4 in shallow lakes Researchers @LeibnizIGB collected Lake Kemnade sediment samples in 1 L DURAN® Original GL 45 bottles sealed with bromobutyl rubber stoppers https://doi.org/10.1016/j.aquabot.2022.103555 Two-stage integrated process for bio-methanol production coupled with methane and carbon dioxide sequestration: Kinetic modelling and experimental validation Researchers @GITAMUniversity used 250mL DURAN® bottles and bromobutyl rubber stoppers https://doi.org/10.1016/j.jenvman.2021.113927
Products
Products

| Catalog No | Thread | Material | Diameter d (mm) | Height h (mm) | Quantity | |
|---|---|---|---|---|---|---|
| 292061301 | GL 25 | BIIR | 22.5 | 12 | 10 | Find a distributor |
| 292062803 | GL 45 | BIIR | 41 | 21 | 10 | Find a distributor |
Specification
Specifications
Product specifications are found on the product detail pages. Click on the product catalog number in the table above to view the individual product specifications.
Product Overview
Product Overview
DURAN® bromobutyl rubber closures provide a gas tight seal for GL 25 or GL 45 glass laboratory bottles. As a material Bromobutyl rubber is essentially impermeable to most gases, and the stopper provides a controlled environment inside the glass bottle for oxygen sensitive materials. Useful for maintaining anaerobic culture conditions. Bromobutyl rubber allows for multiple punctures providing easy access to the contents with a syringe. A Type III Packaging Material DMF (#35811) for these products has been filed with the FDA. Citations and Research papers: A stable isotope assay with 13C-labeled polyethylene to investigate plastic mineralization mediated by Rhodococcus ruber Researchers @NIOZatSea used 100mL DURAN® GL 45 bottles with bromobutyl stoppers 292062803 to allow repeated headspace measurements https://doi.org/10.1016/j.marpolbul.2022.114369 Evaluation of Anaerobic Co-Digestion to Enhance the Efficiency of Livestock Manure Anaerobic Digestion Researchers @realkgu used 0.5L DURAN® bottles with bromobutyl stoppers for BMP Test with a N2 gas anaerobic atmosphere https://doi.org/10.3390/su11247170 Rectinema subterraneum sp. nov, a chemotrophic spirochaete isolated from the deep terrestrial subsurface Researchers @USC performed cultivation in a 1 L DURAN® bottle stoppered with Bromobutyl Rubber Stopper under an atmosphere of N2/CO2 (80:20) at 30 °C https://doi.org/10.1099/ijsem.0.004339 Short-term effects of macrophyte removal on emission of CO2 and CH4 in shallow lakes Researchers @LeibnizIGB collected Lake Kemnade sediment samples in 1 L DURAN® Original GL 45 bottles sealed with bromobutyl rubber stoppers https://doi.org/10.1016/j.aquabot.2022.103555 Two-stage integrated process for bio-methanol production coupled with methane and carbon dioxide sequestration: Kinetic modelling and experimental validation Researchers @GITAMUniversity used 250mL DURAN® bottles and bromobutyl rubber stoppers https://doi.org/10.1016/j.jenvman.2021.113927
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