Guanine

Guanine

Names
IUPAC name 2-amino-1H-purin-6(9H)-one
Ither names 2-amino-6-hydroxypurine, 2-aminohypoxanthine, Guanine
Identifiers
CAS Nummer	73-40-5 Y
3D model (JSmol)	Interactive eemage
ChEBI	CHEBI:16235 Y
ChEMBL	ChEMBL219568 Y
ChemSpider	744 Y
DrugBank	DB02377 Y
ECHA InfoCard	100.000.727
KEGG	C00242 Y
RTECS nummer	MF8260000
UNII	5Z93L87A1R Y
InChI InChI=1S/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11) Y Key: UYTPUPDQBNUYGX-UHFFFAOYSA-N Y InChI=1/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11) Key: UYTPUPDQBNUYGX-UHFFFAOYAE
SMILES c1[nH]c2c(n1)c(=O)[nH]c(n2)N
Properties
Chemical formula	C5H5N5O
Molar mass	151.13 g/mol
Appearance	White amorphous solid.
Density	2.200 g/cm3 (calculatit)
Meltin pynt	360 °C (633.15 K) decomp.
Bylin pynt	Sublimes
Solubility in watter	Insoluble.
Acidity (pKa)	3.3 (amide), 9.2 (seicontary), 12.3 (primary)
Hazards
Main hazards	Irritant.
NFPA 704	1 1
Flash pynt	Non-flammable
Relatit compoonds
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
Y verify (whit is YN ?)
Infobox references

Guanine /ˈɡwɑːnᵻn/ (G, Gua) is ane o the fower main nucleobases foond in the nucleic acids DNA an RNA, the ithers bein adenine, cytosine, an thymine (uracil in RNA).