L-Glutamic γ-monohydroxamate is an antitumor agent, inhibits cell proliferation. L-Glutamic γ-monohydroxamate selectively inhibits the uptake of L-histidine into microvascular endothelial cell. L-Glutamic γ-monohydroxamate, as a vanadium ligand, activates glucose uptake and metabolism, thus decreases the blood glucose levels in vivo[1][2][3].