abstract |
A crystalline polymorph of 2- [4 [2 - [[(1S, 2R) -2-hydroxy-2- (4-hydroxyphenyl) -1-methylethyl] ami-no] ethyl] phenoxy] acetic acid having strong peaks of diffraction (diffraction angle: 2T + 0.1º) at 10.8, 19.1, 19.3, 19.8, 20.6 and 27, Oº in the X-ray powder diffraction pattern. |