Gemcitabine triphosphate (trisodium) is one of the two nucleoside metabolites of Gemcitabine in cells. The other is active diphosphate (dFdDTP). Gemcitabine triphosphate can be used as a standard in radio-labeled probe imaging studies, to identify tumors sensitive to Gemcitabine, and to evaluate Gemcitabine uptake and retention by cells.
References:
[1]. Shewach DS, et al. Gemcitabine and radiosensitization in human tumor cells. Invest New Drugs. 1996;14(3):257-63.