1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-, compd. with 2,2'-iminobis(ethanol) (1:1) 32156-80-2 Deriphyllin Ethanol, 2,2'-iminobis-, compd. with 3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione (1:1) Hydroxyethyltheophylline complet Theophylline diethanolamine Theophylline, compd. with 2,2'-iminodiethamol (1:1)