Adenine

Adenine

Names
IUPAC name 9H-purin-6-amine
Ither names 6-aminopurine
Identifiers
Jmol-3D images	Image Image
ChEBI	CHEBI:16708 Y
ChEMBL	ChEMBL226345 Y
ChemSpider	185 Y
DrugBank	DB00173 Y
ECHA InfoCard	100.000.724
EC Nummer	200-796-1
KEGG	D00034 Y
RTECS nummer	AU6125000
UNII	JAC85A2161 Y
InChI InChI=1S/C5H5N5/c6-4-3-5(9-1-7-3)10-2-8-4/h1-2H,(H3,6,7,8,9,10) Y Key: GFFGJBXGBJISGV-UHFFFAOYSA-N Y InChI=1/C5H5N5/c6-4-3-5(9-1-7-3)10-2-8-4/h1-2H,(H3,6,7,8,9,10) Key: GFFGJBXGBJISGV-UHFFFAOYAT
SMILES n1c(c2c(nc1)ncn2)N c1[nH]c2c(ncnc2n1)N
Properties
Chemical formula	C5H5N5
Molar mass	135.13 g/mol
Appearance	white to light yellow, crystalline
Density	1.6 g/cm3 (calculated)
Meltin pynt	360 °C (680 °F; 633 K) decomposes
Solubility in watter	0.103 g/100 mL
Solubility	negligible in ethanol
Acidity (pKa)	4.15 (secondary), 9.80 (primary)
Thermochemistry
Speceefic heat capacity, C	147.0 J/K·mol
Std enthalpy o formation ΔfHo298	96.9 kJ/mol
Hazards
Safety data sheet	MSDS
Lethal dose or concentration (LD, LC):
LD50 (Median dose)	227 mg/kg (rat, oral)
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

Adenine /ˈædᵻnᵻn/ (A, Ade) is a nucleobase (a purine derivative) wi a variety of roles in biochemistry includin cellular respiration, in the form of baith the energy-rich adenosine triphosphate (ATP) an the cofactors nicotinamide adenine dinucleotide (NAD) an flavin adenine dinucleotide (FAD), an protein synthesis, as a chemical component o DNA an RNA.