Dienamide A2 (24738-51-0) is an analog of the natural amides occurring in Echinacea which represent a new class of cannabinomimetic compounds. This class of compounds modulates TNFα mRNA expression in human monocytes/macrophages via the CB2 receptor.1Dienamide A2 binds to cannabinoid receptors with greater affinity than endogenous cannabinoids (Ki= ~60 and >1500 nM for CB2 and CB1 respectively)2. It elevates intracellular Ca2+ levels in CB2-positive but not in CB2-negative cells and this effect was blocked by SR144528.2It significantly inhibits LPS-induced TNFα and IL-1β expression in a CB2-independent manner.2