1,2,4-Butanetricarboxylic acid, 2-((O-alpha-D-ribofuranosyl-(1-2)-O-alpha-D-ribofuranosyl-(1-3)-alpha-D-ribofuranosyl)oxy)-, (S)- 77752-20-6 Citric acid tririboside Ribocitrin Triribofuranosylcitrate