21718
When irradiated with 1 . 0 J / cm ( 2 ) UVA light , these compounds when tested at doses of 0 . 1 , 0 . 2 , and 0 . 5 mu M , all induced photocytotoxicity in a dose - dependent manner .
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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