13880
After the administration of drug - containing transfersomes and liposomes on abdominal skin regions of rats for a period of 10 h , the C ( max ) of cinnamic acid from the compared liposomes was 3 . 21 +/- 0 . 25 mu g / mL and that from the transfersomes was merely 0 . 59 +/- 0 . 02 mu g / mL .
 Chemical: cinnamic acid
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: cinnamic acid