15890
90 - day - old Long - Evans rats were randomly divided into 3 groups , and were gavaged with the corn oil ( control ) or 10 or 750mg / kg DEHP daily for 7 days , and then received an intraperitoneal injection of 75mg / kg ethane dimethanesulfonate ( EDS ) to eliminate Leydig cells .
 DEHP, ethane dimethanesulfonate, EDS
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 DEHP, ethane dimethanesulfonate, EDS