Image 1 of 1 IL-4, Human, E.coli US$120.25 SIZE10μg (10 Microgram) Add To Cart Added! SIZE10μg (10 Microgram) You Might Also Like Human Interleukin 2 (hIL-2) US$264.55 Human Leptin-Fc US$473.79 Human Interleukin 15 (hIL-15) US$719.10 IL-6, Human, E.coli US$144.30 Human Galectin-3 protein US$473.79