6-Thio-8-(3'-pyridylmethyl)thiotheophylline 6493-44-3 BRN 1156854 NSC 97999 Theophylline, 8-(3-pyridylmethyl)thio-6-thio- Uric acid, 1,3-dimethyl-8-(3-pyridylmethyl)thio-6-thio-