14358
Vesicles composed of fatty acid and N - [ 3 - ( dimethylamino ) propyl ] - octadecanamide : effect of fatty acid chain length on physicochemical properties of vesicles .
 fatty acid, N - [ 3 - ( dimethylamino ) propyl ] - octadecanamide, fatty acid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 fatty acid, N - [ 3 - ( dimethylamino ) propyl ] - octadecanamide, fatty acid