Adenina: Diferenzas entre revisións
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Liña 1:
{{chembox
| Watchedfields = changed
| verifiedrevid = 477242257
| ImageFile1 = Adenine.svg
| ImageSize1 = 120px
| ImageFileL2 = Adenine-3D-balls.png
| ImageSizeL2 = 120px
| ImageFileR2 = Adenine-3D-vdW.png
| ImageSizeR2 = 120px
| IUPACName = 9''H''-purin-6-amina
| OtherNames = 6-aminopurina
| Section1 = {{Chembox Identifiers
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = JAC85A2161
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D00034
| InChI = 1/C5H5N5/c6-4-3-5(9-1-7-3)10-2-8-4/h1-2H,(H3,6,7,8,9,10)
| InChIKey = GFFGJBXGBJISGV-UHFFFAOYAT
| SMILES1 = c1[nH]c2c(ncnc2n1)N
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C5H5N5/c6-4-3-5(9-1-7-3)10-2-8-4/h1-2H,(H3,6,7,8,9,10)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = GFFGJBXGBJISGV-UHFFFAOYSA-N
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 226345
| CASNo = 73-24-5
| CASNo_Ref = {{cascite|correct|CAS}}
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID=185
| PubChem = 190
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| DrugBank = DB00173
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 16708
| SMILES = n1c(c2c(nc1)ncn2)N
| MeSHName =
| EINECS = 200-796-1
| RTECS = AU6125000
}}
| Section2 = {{Chembox Properties
| Formula = C<sub>5</sub>H<sub>5</sub>N<sub>5</sub>
| MolarMass = 135,13 g/mol
| Appearance = branca ou amarela clara, cristalina
| Density = 1,6 g/cm<sup>3</sup> (calculada)
| MeltingPtC = 360
| MeltingPtCH = 365
| MeltingPt_notes = decomposes
| BoilingPt =
| Solubility = 0,103 g/100 mL
| SolubleOther = negligible in [[ethanol]]
| pKa=4,15 (secundaria), 9,80 (primaria)<ref>Dawson, R.M.C., et al., ''Data for Biochemical Research'', Oxford, Clarendon Press, 1959.</ref>
}}
| Section4 = {{Chembox Thermochemistry
| DeltaHf = 96,9 kJ/mol
| HeatCapacity = 147,0 J/K·mol
}}
| Section5 = {{Chembox Hazards
| ExternalMSDS = [http://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=PL&language=EN-generic&productNumber=A8626&brand=SIGMA&PageToGoToURL=http%3A//www.sigmaaldrich.com/catalog/product/sigma/a8626%3Flang%3Dpl MSDS]
| MainHazards =
| FlashPtC=
| AutoignitionC =
| LD50 = 227 mg/kg (rata, oral)
}}
}}
A '''adenina''' é unha das cinco [[base nitroxenada|bases nitroxenadas]] que forman parte dos ácidos nucleicos ([[ácido desoxirribonucleico|ADN]] e [[ácido ribonucleico|ARN]]) e no [[código xenético]] represéntase coa letra [[A]]. As outras catro bases son a [[guanina]], a [[citosina]], a [[timina]] e o [[uracilo]]. No ADN a adenina sempre se emparella coa timina.
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