Labelled 3-Amino-4-(propylamino)-3-cyclobutene-1,2-dione (A628225). A novel class of sugar-nucleotide mimics. Sugar-nucleotides such as GDP-mannose, GDP-furose and UDP-glucose are important biomolecul
es with a central role in carbohydrate and glycoconjugate biosynthesis metabolites and cell signaling.