An LPA2 receptor agonist (EC50 = 3.3 μM in LPA2-transfected RH7777 cells); selective for LPA2, having no activity at LPA1, LPA3, LPA4, and LPA5 at concentrations up to 10 μM; increases growth and reduces caspase-3 and -7 activation in LPA2-transduced MEF fibroblasts; increases MM1 rat hepatoma cell invasion and inhibits apoptosis of IEC-6 cells induced by TNF-α, doxorubicin, or serum withdrawal; rescues apoptotic cells from γ-irradiation-induced injury in vitro and in vivo