27216
Sterlet sperm was exposed for 2h to duroquinone at concentrations of 25 , 50 , 100 , and 150 mu M .
 Chemical: duroquinone
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: duroquinone