19971-76-7

7-[3-(4-Butyl-1-piperazinyl)-2-hydroxypropyl]theophyline 7-[3-(4-Butyl-1-piperazinyl)-2-hydroxypropyl]theophylline 7-[3-(4-Butyl-1-piperazinyl)-2-hydroxypropyl]-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione 1H-Purine-2,6-dione, 7-[3-(4-butyl-1-piperazinyl)-2-hydroxypropyl]-3,7-dihydro-1,3-dimethyl-