4791-39-3 6-Thio-8-(N-heptylthio)theophylline 6-Thio-8-n-heptylthiotheophylline BRN 1145300 NSC 95907 Theophylline, (8-heptylthio)-6-thio- Theophylline, 8-heptylthio-6-thio- Uric acid, 1,3-dimethyl-8-heptylthio-6-thio-