C₁₈H₂₃N₅O₈P•Na; MW 491.4; λ_max 273 nm; ε 17000; sodium salt, purity > 98% HPLC. Membrane-permeant activator of protein kinase A (cyclic AMP agonist). Detailed technical information including hints about potential pitfalls and selected references available. Reference: Posternak et al., Methods Enzymol., 38, 399 (1974). Caution: This analogue releases butyrate due to intracellular and extracellular esterase action. Butyrate was shown to have distinct biological effects! We offer numerous more recommendable cAMP agonists. DB-cAMP is also available in an inexpensive low purity form ( D 009 Economy Grade ).