| 摘要 |
<p>The present solution relates to tapentadol maleate Form A of formula I, exhibiting the following characteristic reflections in an X-ray powder diffraction pattern, measured with the use of CuKa radiation: 10.7; 11.6; 16.0; 17.1; 20.4; 24.2 and 25.9 ± 0.2° 2-theta, the main onset temperature of 90.0°C when measured with the use of Differential Scanning Calorimetry (DSC), and the absorption peaks at 3217, 2971, 2874, 1705, 1619, 1587, 1534, 1484, 1351, 1250, 1188 a 1075 cm-1 in the IR spectrum.</p> |
