Guanosine

**Definition:** A purine nucleoside that has guanine linked by its N9 nitrogen to the C1 carbon of ribose. It is a component of ribonucleic acid and its nucleotides play important roles in metabolism. (From Dorland, 28th ed)

**Tree numbers:** - D03.633.100.759.590.454 - D13.570.583.454 - D13.570.800.453