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. 2019 Oct 29;11(11):561. doi: 10.3390/pharmaceutics11110561

Figure 4.

Figure 4

Physical examination of the aqueous YSB201 formulation under various pH condition. (A) For the formulation with the weight ratio of ursodeoxycholic acid (UDCA) to maltodextrin (1:15), the solution in tubes is displayed with numbers at different pH conditions; pH 9.5 (1, clear), pH 8.9 (2, clear), pH 7.9 (3, clear), pH 7.1 (4, clear), pH 6.0 (5, clear), pH 5.5 (6, precipitated). (B) With the weight ratio of UDCA to maltodextrin (1:30), the solution in tubes is displayed with numbers at different pH conditions; pH 9.0 (1, clear), pH 8.0 (2, clear), pH 7.0 (3, clear), pH 6.0 (4, clear), pH 5.1 (5, clear), pH 4.1 (6, clear), pH 2.9 (7, clear).