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Record Information
Version4.0
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2018-05-20 09:55:23 UTC
HMDB IDHMDB0001123
Secondary Accession Numbers
  • HMDB01123
Metabolite Identification
Common Name2-Aminobenzoic acid
Description2-Aminobenzoic acid, also known as anthranilate or anthranilic acid, belongs to the class of organic compounds known as aminobenzoic acids. These are benzoic acids containing an amine group attached to the benzene moiety. 2-Aminobenzoic acid exists as a solid, slightly soluble (in water), and a weakly acidic compound (based on its pKa). 2-Aminobenzoic acid has been found in human epidermis tissue, and has also been primarily detected in feces, urine, blood, and cerebrospinal fluid. Within the cell, 2-aminobenzoic acid is primarily located in the cytoplasm and mitochondria. 2-Aminobenzoic acid exists in all eukaryotes, ranging from yeast to humans. 2-Aminobenzoic acid participates in a number of enzymatic reactions. In particular, 2-Aminobenzoic acid and formic acid can be biosynthesized from formylanthranilic acid through the action of the enzyme kynurenine formamidase. Furthermore, 2-Aminobenzoic acid and L-alanine can be biosynthesized from L-kynurenine; which is catalyzed by the enzyme kynureninase. Furthermore, Pyruvic acid, L-glutamic acid, and 2-aminobenzoic acid can be biosynthesized from chorismate and L-glutamine through its interaction with the enzyme anthranilate synthase component. Finally, 2-Aminobenzoic acid and phosphoribosyl pyrophosphate can be converted into N-(5-phosphoribosyl)-anthranilate through the action of the enzyme anthranilate phosphoribosyltransferase. In humans, 2-aminobenzoic acid is involved in the tryptophan metabolism pathway. Outside of the human body, 2-aminobenzoic acid can be found in a number of food items such as alpine sweetvetch, corn, garden tomato, and conch. This makes 2-aminobenzoic acid a potential biomarker for the consumption of these food products. 2-Aminobenzoic acid is a potentially toxic compound.
Structure
Thumb
Synonyms
ValueSource
2-AminobenzoesaeureChEBI
2-CarboxyanilineChEBI
O-AminobenzoesaeureChEBI
O-Aminobenzoic acidChEBI
O-CarboxyanilineChEBI
Vitamin L1ChEBI
2-AminobenzoateGenerator
O-AminobenzoateGenerator
1-amino-2-CarboxybenzeneHMDB
2-amino-BenzoateHMDB
2-amino-Benzoic acidHMDB
2-AminophenylacetateHMDB
2-Aminophenylacetic acidHMDB
AnthranateHMDB
Anthranic acidHMDB
AnthranilateHMDB
Anthranilic acidHMDB
Anthranilic acid GRHMDB
CarboxyanilineHMDB
H-2-Abz-OHHMDB
Kyselina anthranilovaHMDB
Kyselina O-aminobenzoovaHMDB
O-amino-BenzoateHMDB
O-amino-Benzoic acidHMDB
O-AnthranilateHMDB
O-Anthranilic acidHMDB
ortho-AmidobenzoateHMDB
ortho-Amidobenzoic acidHMDB
ortho-AminobenzoateHMDB
ortho-Aminobenzoic acidHMDB
Vitamin LHMDB
Anthranilic acid, calcium (2:1) saltMeSH
Anthranilic acid, cadmium saltMeSH
Anthranilic acid, dihydrochlorideMeSH
Anthranilic acid, monosodium saltMeSH
Anthranilic acid, monolithium saltMeSH
Anthranilic acid, hydrochlorideMeSH
Chemical FormulaC7H7NO2
Average Molecular Weight137.136
Monoisotopic Molecular Weight137.047678473
IUPAC Name2-aminobenzoic acid
Traditional Name2-aminobenzoic acid
CAS Registry Number118-92-3
SMILES
NC1=CC=CC=C1C(O)=O
InChI Identifier
InChI=1S/C7H7NO2/c8-6-4-2-1-3-5(6)7(9)10/h1-4H,8H2,(H,9,10)
InChI KeyRWZYAGGXGHYGMB-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as aminobenzoic acids. These are benzoic acids containing an amine group attached to the benzene moiety.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassBenzoic acids and derivatives
Direct ParentAminobenzoic acids
Alternative Parents
Substituents
  • Aminobenzoic acid
  • Benzoic acid
  • Benzoyl
  • Aniline or substituted anilines
  • Vinylogous amide
  • Amino acid or derivatives
  • Amino acid
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxide
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Amine
  • Hydrocarbon derivative
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
Physiological effect

Health effect:

Disposition

Source:

Route of exposure:

Biological location:

Process

Naturally occurring process:

Role

Industrial application:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point146.5 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility3.5 mg/mLNot Available
LogP1.21HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
Water Solubility6.81 g/LALOGPS
logP0.78ALOGPS
logP1.45ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)4.89ChemAxon
pKa (Strongest Basic)1.95ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity38.01 m³·mol⁻¹ChemAxon
Polarizability13.29 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (2 TMS)splash10-014i-1950000000-5595652a2e8f93679437View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-014i-1960000000-889ed538406d5aa57a5dView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (2 TMS)splash10-00xr-9650000000-e0611721f0bf7b5bb2f8View in MoNA
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-00r6-2910000000-0daf33fe6231b5e15b0eView in MoNA
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-014i-3970000000-3351c7d8036c42c4cd41View in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-00kf-9400000000-b65ee27505e8c4bcca28View in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-014i-0490000000-4165d1d7b8fff53889ddView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-014i-1950000000-5595652a2e8f93679437View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-014i-1960000000-889ed538406d5aa57a5dView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-00xr-9650000000-e0611721f0bf7b5bb2f8View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-00r6-2910000000-0daf33fe6231b5e15b0eView in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-014i-3970000000-3351c7d8036c42c4cd41View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00kr-7900000000-a9c510a71b30a8fcc1b8View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00di-7900000000-cb7be965685a5ee30fbdView in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI RMU-7M) , Positivesplash10-00kf-9400000000-395d42e11895b80f4e9cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-000i-0900000000-8c390367e035aea8527aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-0006-9000000000-899b596a227cd9a1769dView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-014i-0900000000-3cc9be013399e30d7eaeView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-00di-0900000000-655ef8fc722e0b1b6d14View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-000i-0900000000-4d0520217d12a10f9273View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-0006-9000000000-bab8539624c8af4e6434View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-014i-0900000000-f51f2db6bf1da2e26d20View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positivesplash10-00di-0900000000-86d698a8c81a3e765840View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-000i-0900000000-6df94712ad580bebfd21View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-0006-9100000000-a1ce64280c2d7f3b85dfView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-0006-9000000000-454f848122c778e951adView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-0006-9000000000-7de473c1ca6bf702b2acView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negativesplash10-0006-9000000000-94f19baa1ae36f43be60View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positivesplash10-00di-2900000000-c2bbbe5e00434e635ad2View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positivesplash10-00di-4900000000-f8f84a5536375300afbdView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positivesplash10-00r6-9200000000-fccd86d3a0a4bfe2e5d7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positivesplash10-014i-9000000000-91ceb340e5cf91473cbaView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positivesplash10-014i-9000000000-80972c552b97ae764bc4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-00di-4900000000-f494672ce9de4818b8c5View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0006-9300000000-9bbb2f00817538e072d5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0079-0900000000-e7e07e78dd5baa5c3f87View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-1900000000-54a3d793d6fbf0220b47View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0umi-9200000000-bd780d6ca957af006488View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000f-9800000000-93111d593c96a3298a6cView in MoNA
MSMass Spectrum (Electron Ionization)splash10-014u-9600000000-5b8e271f29d04a87c89aView in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,1H] 2D NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Urine
Tissue Locations
  • Epidermis
  • Fibroblasts
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.001 +/- 0.000046 uMAdult (>18 years old)BothNormal details
BloodDetected and Quantified0.03 +/- 0.01 uMAdult (>18 years old)BothNormal details
Cerebrospinal Fluid (CSF)Detected and Quantified0.001 +/- 0.00027 uMAdult (>18 years old)BothNormal details
FecesDetected but not Quantified Adult (>18 years old)Both
Normal
details
UrineDetected and Quantified0.2 umol/mmol creatinineAdult (>18 years old)BothNormal details
UrineDetected and Quantified0.42 (0.15-1.0) umol/mmol creatinineAdult (>18 years old)BothNormal
    • Geigy Scientific ...
    • West Cadwell, N.J...
    • Basel, Switzerlan...
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.12 +/- 0.05 uMAdult (>18 years old)Bothuremia details
FecesDetected but not Quantified Adult (>18 years old)Both
Colorectal cancer
details
FecesDetected but not Quantified Children (6 - 18 years old)Bothenthesitis-related arthritis details
FecesDetected but not Quantified Adult (>18 years old)Both
Colorectal cancer
details
UrineDetected and Quantified17.78 +/- 18.028 umol/mmol creatinineChildren (1 - 13 years old)Not Specified
Eosinophilic esophagitis
    • Mordechai, Hien, ...
details
Associated Disorders and Diseases
Disease References
Colorectal cancer
  1. Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
  2. Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
Uremia
  1. Duranton F, Cohen G, De Smet R, Rodriguez M, Jankowski J, Vanholder R, Argiles A: Normal and pathologic concentrations of uremic toxins. J Am Soc Nephrol. 2012 Jul;23(7):1258-70. doi: 10.1681/ASN.2011121175. Epub 2012 May 24. [PubMed:22626821 ]
Eosinophilic esophagitis
  1. (). Mordechai, Hien, and David S. Wishart. .
Associated OMIM IDs
DrugBank IDDB04056
Phenol Explorer Compound IDNot Available
FoodDB IDFDB000896
KNApSAcK IDC00007382
Chemspider ID222
KEGG Compound IDC00108
BioCyc IDANTHRANILATE
BiGG ID33883
Wikipedia LinkAnthranilic_acid
METLIN ID6018
PubChem Compound227
PDB IDBE2
ChEBI ID30754
References
Synthesis ReferenceWang, Chengyin; Yang, Jisheng; Wang, Honghai. Production of o-aminobenzoic acid from by-product o-nitrobenzoic acid. Huaxue Shijie (1999), 40(5), 274-277.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Igari T, Tsuchizawa M, Shimamura T: Alteration of tryptophan metabolism in the synovial fluid of patients with rheumatoid arthritis and osteoarthritis. Tohoku J Exp Med. 1987 Oct;153(2):79-86. [PubMed:3500530 ]
  2. Calandra P: Research on tryptophan metabolites "via kynurenine" in epidermis of man and mouse. Acta Vitaminol Enzymol. 1975;29(1-6):158-60. [PubMed:1244085 ]
  3. Di Marco GS, Quinto BM, Juliano M, Carmona AK, Stella RC, Plavnik FL, Casarini DE: Purification and characterization of a neutral endopeptidase-like enzyme from human urine. J Hypertens. 1998 Dec;16(12 Pt 2):1971-8. [PubMed:9886885 ]
  4. Hagag N, Birnbaum ER, Darnall DW: Resonance energy transfer between cysteine-34, tryptophan-214, and tyrosine-411 of human serum albumin. Biochemistry. 1983 May 10;22(10):2420-7. [PubMed:6860638 ]
  5. Little CH, Georgiou GM, Shelton MJ, Simpson F, Cone RE: Clinical and immunological responses in subjects sensitive to solvents. Arch Environ Health. 1999 Jan-Feb;54(1):6-14. [PubMed:10025410 ]
  6. Ritchie MR, Morton MS, Thompson AM, Deighton N, Blake A, Cummings JH, Steel CM: Investigation of the reliability of 24 h urine excretion as a biomarker of isoflavone exposure over time and over a wide range of isoflavone intakes. Eur J Clin Nutr. 2004 Sep;58(9):1286-9. [PubMed:15054404 ]
  7. Ortega RM, Andres P, Martinez RM, Lopez-Sobaler AM: Vitamin A status during the third trimester of pregnancy in Spanish women: influence on concentrations of vitamin A in breast milk. Am J Clin Nutr. 1997 Sep;66(3):564-8. [PubMed:9280174 ]
  8. Alves MF, Araujo MC, Juliano MA, Oliveira EM, Krieger JE, Casarini DE, Juliano L, Carmona AK: A continuous fluorescent assay for the determination of plasma and tissue angiotensin I-converting enzyme activity. Braz J Med Biol Res. 2005 Jun;38(6):861-8. Epub 2005 Jun 1. [PubMed:15933779 ]
  9. Soma J, Sugawara T, Huang YD, Nakajima J, Kawamura M: Tranilast slows the progression of advanced diabetic nephropathy. Nephron. 2002;92(3):693-8. [PubMed:12372957 ]
  10. Ahmad S: The functional roles of cytochrome P-450 mediated systems: present knowledge and future areas of investigations. Drug Metab Rev. 1979;10(1):1-14. [PubMed:118858 ]
  11. Spivak W, Carey MC: Reverse-phase h.p.l.c. separation, quantification and preparation of bilirubin and its conjugates from native bile. Quantitative analysis of the intact tetrapyrroles based on h.p.l.c. of their ethyl anthranilate azo derivatives. Biochem J. 1985 Feb 1;225(3):787-805. [PubMed:3919713 ]

Enzymes

General function:
Involved in metabolic process
Specific function:
Catalyzes the cleavage of L-kynurenine (L-Kyn) and L-3-hydroxykynurenine (L-3OHKyn) into anthranilic acid (AA) and 3-hydroxyanthranilic acid (3-OHAA), respectively. Has a preference for the L-3-hydroxy form. Also has cysteine-conjugate-beta-lyase activity.
Gene Name:
KYNU
Uniprot ID:
Q16719
Molecular weight:
34634.47
Reactions
L-Kynurenine + Water → 2-Aminobenzoic acid + L-Alaninedetails
General function:
Involved in hydrolase activity
Specific function:
Catalyzes the hydrolysis of N-formyl-L-kynurenine to L-kynurenine, the second step in the kynurenine pathway of tryptophan degradation. Kynurenine may be further oxidized to nicotinic acid, NAD(H) and NADP(H). Required for elimination of toxic metabolites (By similarity).
Gene Name:
AFMID
Uniprot ID:
Q63HM1
Molecular weight:
33991.5
Reactions
Formylanthranilic acid + Water → Formic acid + 2-Aminobenzoic aciddetails