1H-Purine-2,6-dione, 3,7-dihydro-7-(3-(aminooxy)propyl)-1,3-dimethyl-, hydrochloride 59663-17-1 7-gamma-Aminooxypropyltheophylline hydrochloride Theophylline, 7-(3-(aminooxy)propyl)-, monohydrochloride