21094
Among them , penicifuran A ( 11 ) exhibited inhibitory activity against Staphylococcus albus with an MIC value of 3 . 13 mu M .
 penicifuran A
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 penicifuran A