26595
Monoesters with alkyl chains 4 - 5 carbons in length had the highest potency for testosterone inhibition , while 0 - 2 carbon alkyl chains were least potent .
 Monoesters, carbons, testosterone, carbon
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Monoesters, carbons, testosterone, carbon