Pidotimod Impurity 15

Pidotimod Impurity 2 Ethyl L-thiazolidine-4-carboxylate hydrochloride L(-)-Thiazolidine-4-carboxylic acid Pidotimod Pyr-Ala-OH

Pidotimod Impurity 22 Pidotimod Impurity 17 Pidotimod Impurity 23 Pidotimod Impurity 5 Pidotimod Impurity 11

Pidotimod Impurity 19 Pidotimod Impurity 14 Pidotimod impurity 38 Pidotimod Impurity 4 Pidotimod Impurity 10

Pidotimod Impurity 18 Pidotimod Impurity 13 Pidotimod Impurity 21