12666
Styrene inhibited the reaction through a mixed cooperative mechanism with high affinity for the catalytic site ( 67 micro M ) and lower affinity for the cooperative site ( 1100 micro M ) , while increasing substrate turnover at high concentrations .
 Styrene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Styrene