Pramipexole Dihydrochloride Standard

(S)-Pramipexole Dihydrochloride (S)-6-Propyl-4,5,6,7-tetrahydrobenzo[d]thiazole-2,6-diamine Dihydrochloride; (S)-N6-Propyl-4,5,6,7-tetrahydrobenzo[d]thiazole-2,6-diamine Dihydrochloride;