1299
Using the in vitro model of embryonic rat heart - derived H9c2 cells , we showed that silibinin has a rather safe profile as concentrations up to 200 mu M did not affect cell viability .
 Chemical: silibinin
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: silibinin