allantoic acid

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| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 477314551

| ImageFile = Allantoic acid.svg

| ImageFile_Ref = {{chemboximage|correct|??}}

| ImageSize = 160

| ImageName = Skeletal formula of allantoic acid

| PIN = Bis(carbamoylamino)acetic acid{{cite web|title=allantoic acid - Compound Summary|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=203#x291|work=PubChem Compound|publisher=National Center for Biotechnology Information|access-date=27 June 2012|location=USA|date=16 September 2004|at=Identification}}

| OtherNames = {{unbulleted list|2,2-Di[(aminocarbonyl)amino]acetic acid{{citation needed|date=June 2012}}|Diureidoacetate{{citation needed|date=June 2012}}|2,2-Diureidoacetic acid{{citation needed|date=June 2012}}

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|Section1={{Chembox Identifiers

| CASNo = 99-16-1

| CASNo_Ref = {{cascite|changed|??}}

| PubChem = 203

| ChemSpiderID = 198

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| EINECS = 202-735-4

| KEGG = C00499

| KEGG_Ref = {{keggcite|changed|kegg}}

| MeSHName = allantoic+acid

| ChEBI = 30837

| ChEBI_Ref = {{ebicite|correct|EBI}}

| UNII_Ref = {{fdacite|changed|FDA}}

| UNII = 02WGT7SHWJ

| Beilstein = 1790227

| Gmelin = 240954

| 3DMet = B01270

| SMILES = NC(=O)NC(NC(N)=O)C(O)=O

| StdInChI = 1S/C4H8N4O4/c5-3(11)7-1(2(9)10)8-4(6)12/h1H,(H,9,10)(H3,5,7,11)(H3,6,8,12)

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = NUCLJNSWZCHRKL-UHFFFAOYSA-N

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

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|Section2={{Chembox Properties

| C=4 | H=8 | N=4 | O=4

| Density = 1.618 g mL⁻¹

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|Section3={{Chembox Hazards

| FlashPtC = 219.4

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|Section4={{Chembox Related

| OtherCompounds = {{unbulleted list|Noxytiolin|1,1,3,3-Tetramethylguanidine|Metformin|Carmustine}}

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Allantoic acid is an organic compound with the chemical formula C₄H₈N₄O₄. It is a crystalline acid obtained by hydrolysis of allantoin.

In nature, allantoic acid is produced from allantoin by the enzyme allantoinase (encoded by the gene AllB (Uniprot: [https://www.uniprot.org/uniprotkb/P77671/entry P77671]) in Escherichia coli and other bacteria).