19017
All three beta - amidoamidines 4d - f bearing long linear aliphatic chain ( from n - C8H17 to n - C12H25 ) revealed significant in vitro activity against influenza A virus ( H3N2 ) and modest cytotoxicity .
 Chemical: beta - amidoamidines; Chemical: n - C8H17; Chemical: n - C12H25
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: beta - amidoamidines; Chemical: n - C8H17; Chemical: n - C12H25