2-Thio-8-(N-undecylthio)theophylline 2-Thio-8-n-undecylthiotheophylline 6466-11-1 BRN 1158301 NSC 97995 Theophylline, 2-thio-(8-undecylthio)- Theophylline, 2-thio-8-undecylthio- Uric acid, 1,3-dimethyl-2-thio-8-undecylthio-