plastic stoppers for sale, brand-new and used.

New and Sterile: 2000 count of 13mm gray bromobutyl straight plug, ultra pure rubber closures. Manufactured from an ultra pure bromobutyl formulation with extremely high chemical purity and low gas permeability Free of latex, nitrosamines and 2-MCBT (2- mercaptobenzothiazole) Compatible with applications such as Water for Injection (WFI) where rubber extractables can cause problems Complies with US, European and Japanese Pharmacopeia Very low level of moisture adsorption

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Large lot of chemistry or biology lab glassware and plasticware, Includes all pieces shown in picture: All flasks and beakers are Pyrex, Kimax, or Kontes.

Organic Chemistry Standard Glassware Kit Our Organic Chemistry Standard Glassware Kit with standard taper ground glass joints lets you perform organic chemistry processes. The 24/29 standard taper ground joints allow the different pieces to fit together with only glass in contact with the chemicals, so nothing contaminates the organic chemistry process.