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In direct comparison to arsenite , thio - dimethylarsinic acid ( thio - DMA ( V ) ) and dimethylarsinic glutathione ( DMAG ) exerted a 5 - to 20 - fold stronger cytotoxicity and showed a 2 - to 20 - fold higher cellular bioavailability , respectively .
 arsenite, thio - dimethylarsinic acid, thio - DMA, dimethylarsinic glutathione, DMAG
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 arsenite, thio - dimethylarsinic acid, thio - DMA, dimethylarsinic glutathione, DMAG