Both of these reports lacked pH measurements and interpretation of drug structures and pH and pKa values in relation ... which is a quaternary ammonium salt (see Table 3). e One OH group on ...

Jiangxi Province Key Laboratory of Functional Organic Polymers, East China University of Technology, Nanchang 330013, China ...

Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, United States ...

Most organic drugs contain one acid group, usually a carboxylic acid, -COOH, or one basic primary, secondary, or tertiary amino group, NC 1-3, [3,22,27,28,29] that determines the acid-base ...

Copper hydroxide forms a blue precipitate. The table shows the coloured precipitates formed by five common metal ions in this test.