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