L-Glu-(L-Glu)n-L-Glu Favorable price,high quality Bulk stock, prompt delivery Purity 1000000 ... that is made of D & L glutamic acid units connected by amide linkages between alpha amino & gamma carboxylic acid groups.CAS:25513 ... g,500 g,1000 g100 g,500 g,1000 g L-Glu-(L-Glu)n-L-Glu POLY-L-GLUTAMIC ACID 2'000-15'000 powder PGA