2-Thio-8-(N-undecylthio)theophylline 6466-11-1 NSC97995 Theophylline, 2-thio-(8-undecylthio)- Theophylline, 2-thio-8-(undecylthio)- Uric acid, 1,3-dimethyl-2-thio-(8-undecylthio)-