What is Aspartic acid?
{{chembox | Name = Aspartic acid | ImageFile1 = L-Asparaginsäure - L-Aspartic acid.svg | ImageAlt1 = | ImageCaption1 = [[Skeletal formula]] of <small>L</small>-aspartic acid | ImageFileL2 = Aspartic-acid-from-xtal-view-2-3D-bs-17.png | ImageSizeL2 = 110 | ImageCaptionL2 = [[Ball-and-stick model]] | ImageFileR2 = Aspartic-acid-from-xtal-view-2-3D-sf.png | ImageSizeR2 = 110 | ImageCaptionR2 = [[Space-filling model]] | IUPACName = {{Unbulleted list | ''Trivial:'' Aspartic acid | ''Systematic:'' 2-Aminobutanedioic acid }} | OtherNames = {{Unbulleted list | Aminosuccinic acid | Asparagic acid | Asparaginic acid<ref name=merck>{{cite book |title= The Merck Index |chapter= 862. Aspartic acid |edition= 11th |page= [https://archive.org/details/merckindexency00buda/page/132 132] |year= 1989 |isbn= 978-0-911910-28-5 |last1= Budavari |first1= Susan |last2= Co |first2= Merck |chapter-url-access= registration |chapter-url= https://archive.org/details/merckindexency00buda |url= https://archive.org/details/merckindexency00buda/page/132 }}</ref> }} |Section1={{Chembox Identifiers | index1_label = D/L | index2_label = D | index_label = L <!-- needs to be L aspartic acid (natural isomer) so drugbank etc. take correct index_label --> | UNII1_Ref = {{fdacite|correct|FDA}} | UNII1 = 28XF4669EP | UNII_Ref = {{fdacite|correct|FDA}} | UNII = 30KYC7MIAI | UNII2_Ref = {{fdacite|correct|FDA}} | UNII2 = 4SR0Q8YD1X | ChEMBL_Ref = {{ebicite|correct|EBI}} | ChEMBL = 274323 | KEGG1_Ref = {{keggcite|correct|kegg}} | KEGG1 = C16433 | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = CKLJMWTZIZZHCS-REOHCLBHSA-N | InChIKey1 = CKLJMWTZIZZHCS-UHFFFAOYSA-N | InChIKey2 = CKLJMWTZIZZHCS-UWTATZPHSA-N | CASNo_Ref = {{cascite|correct|CAS}} | CASNo = 56-84-8 | CASNo1 = 617-45-8 | CASNo1_Ref = {{cascite|correct|CAS}} | CASNo2_Ref = {{cascite|correct|CAS}} | CASNo2 = 1783-96-6 | DrugBank = DB00128 | DrugBa