116763-37-2 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-7-(1,3-dithian-2-ylmethyl)- 3,7-Dihydro-1,3-dimethyl-7-(1,3-dithian-2-ylmethyl)-1H-purine-2,6-dione 7-(1,3-Dithian-2-ylmethyl)theophylline BRN 5989591