Identification and Structural Characterization of Unidentified Impurity in Bisoprolol Film-Coated Tablets

Table 2

Increase of the amount of RRT 0.95 before and after thermal degradation of drug product.

	Finish drug product
Conditions of thermal degradation	Initial	(80°C, 5 h)	(80°C, 5 d)
% amount	/	0.50%	1.73%