Uridine, 10 g

A nucleoside supplied by STEMCELL Technologies is one of the five nucleosides used for RNA synthesis and serves as a building block for other biomolecules. Its 5'-diphosphate and 5'-triphosphate forms are described as signaling molecules that activate the purinergic receptors, and the compound is also used as a medium supplement for culturing primary hippocampal neuron cells.

The product is a crystalline solid with a molecular weight of 244.2 g/mol, a chemical formula of C9H12N2O6, and a stated purity of ≥ 98%. Alternative names include NSC 20256, 1-β-D-Ribofuranosyluracil, Uracil-1-β-D-ribofuranoside, and β-Uridine, with CAS Number 58-96-8.

As supplied, the product is stable at room temperature (15 - 25°C) and should be protected from prolonged exposure to light, with a desiccant recommended for long-term storage. It is reported to remain stable as supplied for 12 months from the date of receipt. Reported solubility values are PBS (pH 7.2) ≤ 20 mM and DMSO ≤ 40 mM. In published cancer research, the compound has been used to reduce 5-fluorouracil toxicity without affecting its antitumor activity.