16870-90-9 1H-Purine-2,6-dione, 3,7-dihydro-7-hydroxy- 5-26-14-00133 (Beilstein Handbook Reference) 7-Hydroxyxanthine BRN 0522274 CCRIS 2477 Xanthine 7-N-oxide Xanthine, 7-hydroxy-