Product Description: Guanosine-d13 (DL-Guanosine-d13) is a deuterium of Guanosine (HY-N0097). Guanosine (DL-Guanosine) is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N9-glycosidic bond. Guanosine possesses anti-HSV activity[1].