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Guanosine
Identifiers
CAS number	118-00-3 Y
PubChem	765
MeSH	Guanosine
SMILES	NC1=Nc2[n](cnc2C(=O)N1) [C@@H]3O[C@H](CO)C(O)C3O
Properties
Molecular formula	C10H13N5O5
Molar mass	283.241
Y (what is this?)  (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Guanosine is a nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N₉-glycosidic bond.

Guanosine can be phosphorylated to become GMP (guanosine monophosphate), cGMP (cyclic guanosine monophosphate), GDP (guanosine diphosphate) and GTP (guanosine triphosphate).

When guanine is attached to a deoxyribose ring, it is known as a deoxyguanosine.

Guanosine's structure bears similarities to that of the antiviral drug aciclovir, often used in Herpes treatment.

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