1 GDS Oxidized glutathione disulfide 1.000 2 TS2 2-amino-4-[4-(4-amino-4-carboxy-butyrylamino)-5,8,19,22-tetraoxo-1,2-dithia-6,9,13,18,21-pentaaza-cyclotetracos-23-ylcarbamoyl]-butyric acid 0.760