27619
The immiscible systems consisted of PBS / octanol , PBS / dichloromethane , PBS / chloroform and PBS / ethyl acetate .
 octanol, dichloromethane, chloroform, ethyl acetate
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 octanol, dichloromethane, chloroform, ethyl acetate