IUPAC:7-(2-{[(1R,2S)-1-hydroxy-1-phenylpropan-2-yl]amino}ethyl)-1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione 7-(2-{[2-(3,4-dihydroxyphenyl)-2-hydroxyethyl]amino}ethyl)-1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione dihydrochloride
IUPAC:7-(2-{[(1R,2S)-1-hydroxy-1-phenylpropan-2-yl]amino}ethyl)-1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione 7-(2-{[2-(3,4-dihydroxyphenyl)-2-hydroxyethyl]amino}ethyl)-1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione dihydrochloride