Dihydrochloride Salt of Ethyl Pramipexole is an impurity of Pramipexole (P700755), a dopamine-D2-receptor agonist and antiparkinsonian agent. Melting Point: >230°C (dec.)Solubility:MethanolStability: HygroscopicStorage and Stability:May be stored at RT for short-term only. Long-term storage is recommended at 4°C. Stable for 6 months. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Light sensitive and hygroscopic.