. "Dyphylline"@en . "Dihydroxypropyltheophylline"@en . "D004400" . "C0013360" . "Dyphylline"@en . . . "Diprophylline"@en . . "Diphylline"@en . . "1H-Purine-2,6-dione, 7-(2,3-dihydroxypropyl)-3,7-dihydro-1,3-dimethyl-"@en .