{TAIL ~ The composition} comprises an amount, effective for the intended purpose, of 2 bromo 2 nitropropane 1, 3 diol and {HEAD ~ methyl sulfonyl acrylonitrile}  
{ TAIL ~ The composition } comprises an amount , effective for the intended purpose , of 2 bromo 2 nitropropane 1 , 3 diol and { HEAD ~ methyl sulfonyl acrylonitrile }
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