Guanosine

**Semantic type:** Nucleic Acid, Nucleoside, or Nucleotide

**Definition:** A purine nucleoside formed from a beta-N9-glycosidic bond between guanine and a ribose ring and is essential for metabolism.

**Synonyms:** - 2-Amino-9-Beta-D-Ribofuranosyl-9H-Purine-6(1H)-One - GUANOSINE - Vernine