Nitric oxide (NO) donor. Induces apoptosis in macrophages. The half-life time of DETA NONOate is 20 hours at 37°C and 56 hours at 22-25°C in 0.1M phosphate buffer, pH 7.4. Decomposition of NONOates is nearly instantaneous at pH 5.0. DETA NONOate liberates 2 mol of NO per mol of parent compound.