Recombinant Human Interferon Beta SER17 Mutein Reference Standard

• Cat.No.: IFNβ SER17 Mutein-02HRS

Specification

• Species: Human
• Source: E.coli
• Tag: Non
• Tag: Non
• Stability: Accelerated degradation studies have indicated that this material is suitably stable, when stored at -20°C or below, for the assigned values to remain valid until the material is withdrawn or replaced. These studies have also shown that the material is suitably stable for shipment at ambient temperature without any effect on the assigned values. Once reconstituted, diluted or aliquoted, users should determine the stability of the material according to their own method of preparation, storage and use.
• Usage: This material is intended as a biological reference standard for interferonbeta Ser 17 mutein.
• Storage: Unopened ampoules should be stored at -20°C.For economy of use, it is recommended that the solution be sub-divided into several small aliquots and stored at -40°C.
• contents: Each ampoule contains the residue after freeze-drying of 1 ml of phosphate buffered saline that contained:
  Interferon-beta Ser 17 mutein 1,125 ng
  Human serum albumin 10 mg
  Bovine casein 3 mg
• Shipping: Because of the inherent stability of lyophilized material, may ship these materials at ambient temperature.
• UNITAGE: 64,000 international units (IU) per ampoule
• USE OF MATERIAL: No attempt should be made to weigh out any portion of the freeze-dried material prior to reconstitution Dissolve the total contents of the ampoule in 0.5ml of sterile distilled water and transfer to a sterile container. Rinse the ampoule with 0.4ml of sterile distilled water and add to the first solution. Make up the total volume to 1.0ml with sterile distilled water. The final solution will contain IFN-β at a concentration of 64000 International Units (IU) per ml. Use carrier protein where dilution is required. It is recommended that initial dilutions, i.e. 1:10, 1:100, are either made in cell culture medium containing - 5%v/v –10%v/v calf serum or in phosphate-buffered saline, pH 7.0-7.4, containing 0.3%v/v bovine casein to prevent adsorption of IFN-β to container surfaces.