7-[2-[[2-(3,4-Dihydroxyphenyl)-2-hydroxyethyl]amino]ethyl]theophyline

7-[2-[[2-(3,4-Dihydroxyphenyl)-2-hydroxyethyl]amino]ethyl]-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione