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