16052
Oral doses of 300 and 2000mg / kg were used in the preclinical acute toxicity study ; 100 , 200 , and 300mg / kg were used in both the subchronic toxicity evaluation and the gastric study ; and 300mg / kg was used in the toxicokinetic study .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None