{TAIL ~ The dyes} of the invention optionally possess {HEAD ~ a reactive group} useful for preparing fluorescent conjugates, which conjugates and methods for their preparation are described herein 
{ TAIL ~ The dyes } of the invention optionally possess { HEAD ~ a reactive group } useful for preparing fluorescent conjugates , which conjugates and methods for their preparation are described herein
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH