Tricosylic acid also known as N-tricosanoate or tricosylate belongs to the class of organic compounds known as very long-chain fatty acids.

Tuftsin diacetate, a tetrapeptide, is a macrophage/microglial activator. Tuftsin is a tetrapeptide, Thr-Lys-Pro-Arg, which resides in the Fc-domain of the heavy chain of immunoglobulin G. Tuftsin possesses a broad spectrum of activities related primarily to the immune system function and exerts on phagocytic cells, notably on macrophages.

N-Acetylputrescine is a polyamine commonly occurring excreted in normal human urine.