Human Interleukin-4, accession # P05112, His25-Ser153

Lyophilized from a 0.2 µm-filtered solution containing 1.5 mM potassium phosphate, 8.1 mM sodium phosphate, 2.7 mM potassium chloride and 137 mM sodium chloride, pH 7.5

Both product grades are produced under the same conditions in a GMP facility, ensuring an equal product quality and performance. We offer a more comprehensive QC testing including tighter specifications and documentation for our GMP products: Preclinical vs GMP.

Recommended in sterile water to a final concentration of 250 µg/ml for 50 µg vials or 500 µg/ml for 1 mg vials.

Ambient temperature. Please refer to our Technote Shipment of CellGenix® preclinical and GMP cytokines at ambient temperatures.

≥ 6 months from date of shipping. Please refer to Certificate of Analysis for the exact expiry date.

Store lyophilized cytokine at -20°C to -80°C.

Store a 250 µg/ml reconstituted cytokine solution:

• 4 weeks at 2°C to 8°C under sterile conditions after reconstitution. Store in the original container. 

• 4 months at -20°C to -80°C under sterile conditions after reconstitution. Store in 60 µl aliquots in polypropylene cryogenic vials.

Avoid repeated freeze/thaw cycles.