24360
The present investigations were carried out to study the protective potential of four extracts ( namely petroleum ether extract ( LCR ) , chloroform extract ( LCM ) , ethyl acetate extract ( LCE ) , and alcoholic extract ( LCL ) ) of Lavandula coronopifolia on oxidative stress - mediated cell death induced by ethanol , a known hepatotoxin in human hapatocellular carcinoma ( HepG2 ) cells .
 Chemical: petroleum ether; Chemical: chloroform; Chemical: ethyl acetate; Chemical: ethanol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: petroleum ether; Chemical: chloroform; Chemical: ethyl acetate; Chemical: ethanol