The fluorophore conjugated oligosaccharide fragment 1, wherein {TAIL ~ the oligosaccharide fragment} is prepared from {HEAD ~ said O antigen polysaccharide} by a reductive process 
The fluorophore conjugated oligosaccharide fragment 1 , wherein { TAIL ~ the oligosaccharide fragment } is prepared from { HEAD ~ said O antigen polysaccharide } by a reductive process
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH