BOC Sciences has become the largest supplier of pseudoUridine in the world with the most production capacity. Our annual output of pseudoUridine is currently over 500 kg. Its analogue - N1-MethylpseudoUridine (CAS 13860-38-3), is also our key product and has been used as raw material in the mRNA vaccine against COVID-19. We have been supplying the materials to the current production of COVID-19 mRNA vaccines with recognized quality. phosphoramidite pseudouridine trna https://nucleotech.bocsci.com/product/2r-3r-4s-5s-2-bis-4-methoxyphenyl-phenyl-methoxy-methyl-51305.html