16661
Reversed - phase thin - layer chromatographic ( RP TLC ) retention constants for a newly designed series benzimidazole / benztriazole with expected biological activity were determined as parameters of their lipophilicity and this series was recognized as congeneric .
 benzimidazole, benztriazole
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 benzimidazole, benztriazole