7-(2-hydroxyethyl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione-D6; 7-(2-Hydroxyethyl)theophylline-D6; 3,7-Dihydro-7-(2-hydroxyethyl)-1,3-dimethyl-1H-purine-2,6-dione-D6; 7-(2-Hydroxyethyl)-1,3-dimethylxanthine-D6; 7-Theophyllineethanol-D6; Aethophyllinum-D6; Ascorphylline-D6; Bio-phylline-D6; Cordalin-D6; Corophyllin-N-D6; Dilaphyllin-D6; Etophyllin-D6; Etophylline-D6; Frekaphyllin-D6; Hydroxyethyltheophylline-D6; KT 200G-D6; NSC 113373-D6; Oxphylline-D6; Oxyethophylline-D6; Oxyethyltheophylline-D6; Oxyphyllin-D6; Oxyphylline-D6; Oxytheonyl-D6; Phyllocormin N-D6; Soluphylline-D6;
