Patent ID: 7981921

Claim:
Crystalline form ε of perindopril erbumine, characterised by the following XRD-ray data (measured on a powder diffractometer with CuK α irradiation): Angle 2 theta Lattice spacing Relative intensity (°) d (Å) I/I max (%) 5.28 16.75 2 8.43 10.52 22 8.87 10.00 100 9.45 9.39 92 10.01 8.87 20 13.58 6.57 6 14.21 6.28 14 14.79 6.04 61 15.31 5.84 53 15.84 5.65 49 16.43 5.45 13 16.84 5.32 13 17.65 5.09 18 18.65 4.82 11 19.87 4.54 29 21.21 4.26 49 21.79 4.15 55 22.79 3.98 27 23.52 3.86 30 24.25 3.75 25 25.83 3.54 23 26.55 3.45 25 27.25 3.37 15 28.11 3.27 27.