1957 年 77 巻 12 号 p. 1285-1288
A total of 32 compounds, methyl, ethyl, propyl, butyl, amyl, hexyl, heptyl, and octyl p-hydroxybenzoate and their monochloro, monobromo, and monoiodo derivatives were submitted to tests of their solubility in water and lowering of surface tension in aqueous solution. Relationship between these physical properties and biological activities was also examined. It was thereby found that the biological activity of these compounds can be explained to a certain extent from their lowering of surface tension and solubility in water but a better elucidation can be obtained by the consideration of equilibrium between organic and inorganic properties in these compounds.