6-Thio-8-undecylthiotheophylline 6493-36-3 BRN 1158302 NSC 95927 Theophylline, 6-thio-(8-undecylthio)- Theophylline, 6-thio-8-undecylthio- Uric acid, 1,3-dimethyl-6-thio-8-undecylthio-