Uridine 5'-??(Tetrahydrogen Triphosphate)??, P''→5'-??Ester with Uridine Triethylamine Salt is a salt analog of Uridine 5'-??(Tetrahydrogen Triphosphate)??, P''→5'-??Ester with Uridine (CAS# 63785-59-1), which can be useful in the structure-activity relationship studies of dinucleotides as potential agonists of P2Y receptors.