Patent ID: 8877770
Filing Date: 2014-11-04
Classification: A61K,A61P,C07D

Abstract:
1. A crystalline form κ of Rifaximin, characterized by a powder XRD spectrum with peaks at values of the angle 2θ of 5.3°, 6.8°, 7.8°, 8.5°, 9.3°, 10.1°, 10.3°, 12.1°, 12.7°, 13.4°, 13.7°, 14.6°, 15.3°, 15.8°, 16.4°, 16.9°, 17.7°, 18.0°, 18.8°, 19.2°, 19.7°, 20.3° and 22.1°.