130187-60-9 1H-Purine-2,6-dione, 3,7-dihydro-8-((2-(butylamino)ethyl)amino)-1,3-dimethyl-7-(phenylmethyl)-, monohydrochloride 7-Benzyl-8-(2-n-butylaminoethyl)aminotheophylline hydrochloride