5695
To improve its pharmacokinetic properties , 8 - chloro - adenosine - 5 ' - O - stearate ( 8CAS ) , a lipophilic octadecanoyl analogue of 8CA , was synthesized and incorporated into pegylated liposomes .
 8 - chloro - adenosine - 5 ' - O - stearate, 8CAS, octadecanoyl, 8CA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 8 - chloro - adenosine - 5 ' - O - stearate, 8CAS, octadecanoyl, 8CA