Abstract
Solubility of 10 kinds of steroidal hormones in non-ionic surface-active agents, possessing polyhydroxyethylene group, was tested with the following results.1) Solubility of testosterone propionate was approximately proportional to the concentration of surface-active agents.2) Solubilizing efficiency of the above compound was better at a lower concentrations;3) At a very high concentration ranges of the active agents, the solubilizing efficiency increased rapidly.4) When compared at the same weight/volume concentration, the active agents possessing smaller number of hydroxyethylene group possessed better solubilizing efficiency.5) In general, hormones with stronger hydrophilic properties were less soluble, although there were some exceptions.Some simple observations were made on the above characteristics.
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