The compound coupled to {HEAD ~ the immunogenic carrier} is utilized to produce antibodies selective for {TAIL ~ the organic compound} 
The compound coupled to { HEAD ~ the immunogenic carrier } is utilized to produce antibodies selective for { TAIL ~ the organic compound }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL