Hormone. Human Ghrelin, Hunger stimulating hormone, Synonyms: Human Ghrelin (Ser3 modified), Ghrelin, h-Ghrelin, rh-Ghrelin, recombinant human Ghrelin, Ghrelin (Ser3 modified), recombinant Ghrelin, Ghrelin, Molecular Weight: 3.374 kDa, Storage: -20 deg C, 1mg