2-O-α-D-Glucopyranosyl-L-ascorbic acid (S3215-GRP)

2-O-α-D-Glucopyranosyl-l-ascorbic acid (AA-2G), which is a glucoside derivative of ascorbic acid (AA), shows vitamin C activity after enzymatic hydrolysis to ascorbic acid. The antitumor activity of AA-2G is caused by ROS generated by AA released by rapid hydrolysis of AA-2G.