1-Methylxanthine, a caffeine derivative, is an essential human urinary metabolite of caffeine and theophylline (1,3-dimethylxanthine, TP). 1-Methylxanthine enhances the radiosensitivity of tumor cells. References: [1]. Algharrawi KH, et al. Direct conversion of theophylline to 3-methylxanthine by metabolically engineered E. coli. Microb Cell Fact. 2015 Dec 21;14:203. [2]. Youn H, et al. 1-Methylxanthine enhances the radiosensitivity of tumor cells. Int J Radiat Biol. 2009 Feb;85(2):167-74.

纯度：≥98%

CAS：6136-37-4