(R)-Pramipexole Pramipexole EP Impurity E Pramipexole Impurity 2 2-N-Propyl Pramipexole PraMipexole DiMer IMpurity II BENZOOXAZOL-2-YLAMINE Pramipexole Impurity 11 (S)-4,5,6,7-Tetrahydro-N2,N6-propionyl-2,6-benzothiazolediaMine Pramipexole Impurity 12 Pramipexole Related Impurity 4 Pramipexole Related Impurity 3 rac-7-Oxo-Pramipexole HCl Pramipexole Related Impurity 2 (6S)-N6-(1-(((6S)-2-amino-3a,4,5,6,7,7a-hexahydrobenzo[d]thiazol-6-yl)amino)-2-methylpentan-3-yl)-4,5,6,7-tetrahydrobenzo[d]thiazole-2,6-diamine Pramipexole Impurity 15 Pramipexole Related Impurity 1 Pramipexole Impurity 18 Pramipexole Impurity 17