What is Alanine?
{{chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 477316311 | Name = Alanine | ImageFile = L-Alanin - L-Alanine.svg | ImageSize = 170px | ImageName = Alanine in non-ionic form | ImageCaption = <small>L</small>-Alanine | IUPACName = Alanine | OtherNames = 2-Aminopropanoic acid | SystematicName = | Section1 = {{Chembox Identifiers | UNII_Ref = {{fdacite|changed|FDA}} | UNII = 1FU7983T0U | InChI = 1/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6) | InChIKey = QNAYBMKLOCPYGJ-UHFFFAOYAA | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/C2H4NH2COOH/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/t2-/m1/s1 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = QNAYBMKLOCPYGJ-UWTATZPHSA-N | CASNo = 338-69-2 | CASNo_Ref = {{cascite|correct|CAS}} | CASNo_Comment = (<small>D</small>-isomer) | CASNo2_Ref = {{cascite|correct|??}} | CASNo2 = 302-72-7 | CASNo2_Comment = (racemic) | CASNo1_Ref = {{cascite|correct|??}} | CASNo1 = 56-41-7 | CASNo1_Comment = (<small>L</small>-isomer) | EC_number = 206-126-4 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 64234 | ChEMBL_Ref = {{ebicite|correct|EBI}} | ChEMBL = 66693 | ChemSpiderID_Comment = (<small>D</small>-isomer) | ChemSpiderID2_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID2 = 582 | ChemSpiderID2_Comment = (Racemic) | ChemSpiderID1_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID1 = 5735 | ChemSpiderID1_Comment = (<small>L</small>-isomer) | PubChem = 5950 | IUPHAR_ligand = 720 | KEGG_Ref = {{keggcite|changed|kegg}} | KEGG = C01401 | ChEBI_Ref = {{ebicite|changed|EBI}} | ChEBI = 16977 | SMILES = O=C(O)C(N)C | SMILES1 = O=C([O-])C([NH3+])C | SMILES1_Comment = [[Zwitterion]] | SMILES2 = O=C(O)[C@@H](N)C | SMILES3 = O=C([O-])[C@@H]([NH3+])C | SMILES3_Comment = [[Zwitterion]] }} | Section2 = {{Chembox Properties | C=3 | H=7 | N=1 | O=2 | Appearance = white powder | Density = 1.424 g/cm<sup>3</sup> | MeltingPtC = 258 | MeltingPt_notes = (sublimes) | BoilingPt = | pKa = {{ubl | 2.34 (carbox