A potent, competitive, and selective antagonist of P2X7 purinergic receptor (pIC50 = 6.5nM and 6.9nM for rat and human P2X7 receptor, respectively). Shown to reduce ATP-induced reactive oxygen species formation in MEL cells by about 87% (~10uM) and blocks BzATP-stimulated changes in intracellular calcium concentrations (IC50 = 100 and 300nM at rat and human P2X7 receptors, respectively. Solubility (100mM):DMSOCarbon Content: 44-56%Hydrogen Content:2.30-3.70%Nitrogen Content:19-21%Water by CHN (mol):≤1molPrimary Target:P2X7Storage and Stability:May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. For maximum recovery of product, centrifuge the original vial prior to removing the cap.