Methyl β-D-Ribofuranoside 2,3,5-Triacetate-13C4 is an intermediate used in the synthesis of Ribavirin-13C5 (R414477), which is a labelled Rivavirin. Purine nucleoside analog; inhibits inosine monophosphate dehydrogenase (IMPDH). Used as an antiviral agent.This compound is suitable for pyruvate dehydrogenase (PDH) related research.