If you are sourcing the above (2R,3R,4R,5R)-5-(4-BENZAMIDO-5-METHYL-2-OXOPYRIMIDIN-1(2H)-YL)-2-((BIS(4-METHOXYPHENYL)(PHENYL)METHOXY)METHYL)-4-METHOXYTETRAHYDROFURAN-3-YL (2-CYANOETHYL) DIISOPROPYLPHOSPHORAMIDITE from China, just feel free to inquire, we will get the competitive price from China Manufacturer & Supplier for you ASAP.