m3227G(5)ppp(5')A triammonium is the triammonium salt form of m3227G(5)ppp(5')A. m3227G(5)ppp(5')A triammonium is a specific mRNA molecule structure, which is composed of a 3227-methylguanine (m3227G) cap , a triphosphate group and an adenosine. m3227G(5)ppp(5')A triammonium affects the stability and translation efficiency of mRNA.