| 摘要 |
<p>A polymorph of 2-(3-cyano-4-isobutyloxyphenyl)-4-methyl-5- thiazolecarboxylic acid, which shows a X-ray powder diffraction pattern having characteristic peaks at a reflection angle 2? of about 6.62, 7.18, 12.80, 13.26, 16.48, 19.58, 21.92, 22.68, 25.84, 26.70, 29.16 and 36.70 DEG having a characteristic absorption, which can be distinguished from that of other polymorphs, at about 1678 cm<-1> in infrared spectroscopic analysis. A method for preparation and use of the polymorph modification is also described.</p> |
