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Vinyl acetate [ VA ( CH3COOC2H3 ) ] is an important unsaturated and oxygenated volatile organic compound responsible for atmospheric pollution .
 Vinyl acetate, CH3COOC2H3
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Vinyl acetate, CH3COOC2H3