2-Thio-8-(N-heptylthio)theophylline 2-Thio-8-n-heptylthiotheophylline 4776-10-7 BRN 1145299 NSC 95908 Theophylline, (8-heptylthio)-2-thio- Theophylline, 8-heptylthio-2-thio- Uric acid, 1,3-dimethyl-8-heptylthio-2-thio-