Patent ID: 8232414

Claim:
A polymorphic form of rotigotine characterized by at least one parameter selected from the group consisting of: (a) a powder X-ray diffraction spectrum comprising at least one peak at the following ° 2θ angles (±0.2): 12.04, 13.68, 17.72, and 19.01; (b) a Raman spectrum comprising at least one peak at the following (±3 cm −1 ): 226.2, 297.0, 363.9, 737.3, 847.3, 1018.7, and 1354.3 cm −1 (c) a DSC peak with a T onset at 97° C.±2° C. measured with a heating rate of 10°/min; and (d) a melting point of 97° C.±2° C.