12510
CLs , composed of 1 , 2 - dioleoyl - sn - glycerol - 3 - phosphocholine / 1 , 2 - dioleoyl - 3 - timethylammonium propane ( DOPC / DOTAP ) and DOPC / 3 beta - { N - [ ( N ' , N ' - dimethylamino ) ethyl ] carbamoyl } cholesterol ( DOPC / DC - Ch ) , inhibited mRNA translation in an Escherichia coli cell - free translation system .
 1 , 2 - dioleoyl - sn - glycerol - 3 - phosphocholine, 1 , 2 - dioleoyl - 3 - timethylammonium propane, DOPC, DOTAP, DOPC, 3 beta - { N - [ ( N ' , N ' - dimethylamino ) ethyl ] carbamoyl } cholesterol, DOPC, DC - Ch
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 1 , 2 - dioleoyl - sn - glycerol - 3 - phosphocholine, 1 , 2 - dioleoyl - 3 - timethylammonium propane, DOPC, DOTAP, DOPC, 3 beta - { N - [ ( N ' , N ' - dimethylamino ) ethyl ] carbamoyl } cholesterol, DOPC, DC - Ch