2-Thio-8-(N-pentylthio)theophylline 2-Thio-8-n-pentylthiotheophylline 4869-70-9 BRN 1139272 NSC 95892 Theophylline, (8-pentylthio)-2-thio- Theophylline, 8-pentylthio-2-thio- Uric acid, 1,3-dimethyl-8-pentylthio-2-thio-