Patent ID: 8470809
Filing Date: 2013-06-25
Classification: A61K,A61P,C07D

Abstract:
1. A crystalline polymorph of Ceftiofur sodium of formula (I) having an X-ray diffraction pattern that comprises 2θ values (Cu K alpha-1λ=1.5406 A°.) of 3.70, 4.89, 6.43, 7.44, 9.86, 12.66, 14.60, 14.85, 15.21, 18.07, 18.47, 19.35, 19.96, 20.89, 21.08, 21.30, 21.89, 22.41, 22.83, 23.14, 24.06, 24.67, 25.02, 25.54, 25.98, 26.51, 26.71, 27.53, 27.81, 28.80, 29.55, 29.95, 30.21, 31.63, 32.78, 35.59, 35.90, 38.74, 39.59 (±0.20).