The compounds of {TAIL ~ this invention} wherein R is NCS can be attached to a biomolecule through {HEAD ~ an amine group} on the latter 
The compounds of { TAIL ~ this invention } wherein R is NCS can be attached to a biomolecule through { HEAD ~ an amine group } on the latter
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH