4858
The in vivo and in vitro toxic effects of the synthetic polymeric 3 - alkylpyridinium salt ( APS3 ) , from the Mediterranean marine sponge Reniera sarai , were evaluated on mammals , with emphasis to determine its mode of action .
 Chemical: 3 - alkylpyridinium salt; Chemical: APS3
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: 3 - alkylpyridinium salt; Chemical: APS3