You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
StatusDetected but not Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2020-02-26 21:22:57 UTC
Secondary Accession Numbers
  • HMDB01101
Metabolite Identification
Common Namep-Anisic acid
Descriptionp-Anisic acid, also known as 4-anisate or draconic acid, belongs to the class of organic compounds known as p-methoxybenzoic acids and derivatives. These are benzoic acids in which the hydrogen atom at position 4 of the benzene ring is replaced by a methoxy group. p-Anisic acid is a drug. p-Anisic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). p-Anisic acid exists in all eukaryotes, ranging from yeast to humans. p-Anisic acid is a faint, sweet, and cadaverous tasting compound. Outside of the human body, p-anisic acid has been detected, but not quantified in, several different foods, such as anises, cocoa beans, fennels, and german camomiles. This could make p-anisic acid a potential biomarker for the consumption of these foods. It is a white crystalline solid which is insoluble in water, highly soluble in alcohols and soluble in ether, and ethyl acetate.p-Anisic acid has antiseptic properties. It is also used as an intermediate in the preparation of more complex organic compounds. It is generally obtained by the oxidation of anethole or p-methoxyacetophenone. The term "anisic acid" often refers to this form specifically.p-Anisic acid is found naturally in anise.
4-Anisic acidChEBI
Anisic acidChEBI
Draconic acidChEBI
p-Methoxybenzoic acidChEBI
4-Methoxybenzoic acidKegg
4-Anisic acid, copper (+2) saltHMDB
4-Anisic acid, 14C-carboxyHMDB
4-Anisic acid, potassium saltHMDB
4-Anisic acid, sodium saltHMDB
Para-anisic acidHMDB
p-Anisic acidChEBI
Chemical FormulaC8H8O3
Average Molecular Weight152.1473
Monoisotopic Molecular Weight152.047344122
IUPAC Name4-methoxybenzoic acid
Traditional NameP-anisic acid
CAS Registry Number100-09-4
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as p-methoxybenzoic acids and derivatives. These are benzoic acids in which the hydrogen atom at position 4 of the benzene ring is replaced by a methoxy group.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassBenzoic acids and derivatives
Direct ParentP-methoxybenzoic acids and derivatives
Alternative ParentsNot Available
SubstituentsNot Available
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available

Route of exposure:

Biological location:



Industrial application:

Physical Properties
Experimental Properties
Melting Point185 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.53 mg/mL at 37 °CNot Available
LogP1.96HANSCH,C ET AL. (1995)
Predicted Properties
Water Solubility2 g/LALOGPS
pKa (Strongest Acidic)4.37ChemAxon
pKa (Strongest Basic)-4.8ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area46.53 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity39.78 m³·mol⁻¹ChemAxon
Polarizability14.99 ųChemAxon
Number of Rings1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0udr-3900000000-37a76df2abc65593a12fSpectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0udr-9700000000-a7c8d60e07932915543cSpectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-05n0-1920000000-e13ac77efe224f99116cSpectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0udr-3900000000-37a76df2abc65593a12fSpectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0udr-9700000000-a7c8d60e07932915543cSpectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-05n0-1920000000-e13ac77efe224f99116cSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0pc0-3900000000-39873d2b062e65c81fedSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-05g0-9730000000-c4e338b3722c56f03a78Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-0pb9-0900000000-e12fd27c6bd5db5e2279Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-004i-9000000000-0a041f6a0f7956c7a3b6Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0fb9-9000000000-6bad7ffd64345511fe82Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (JEOL JMS-AX-505-H) , Positivesplash10-0udr-3900000000-47cdda0bd47b983d915cSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-0udi-2900000000-914fa5e9764ecaca52beSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-0a4i-8900000000-ff833ddec48810872135Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-0a4i-9000000000-73a2bb654df643c39008Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-0a4l-9000000000-79c889c668d83b893177Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negativesplash10-0006-9000000000-a33773d623f5deb358bdSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0udi-2900000000-914fa5e9764ecaca52beSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0a4i-8900000000-cdf1618ff93a8a9e54a2Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0a4i-9000000000-73a2bb654df643c39008Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0a4l-9000000000-79c889c668d83b893177Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0006-9000000000-a33773d623f5deb358bdSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0900000000-95e733af07ea3a610eb7Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udi-0900000000-04d40a78d70a72b47e73Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0zgi-9600000000-b76949cb30a21d1afd24Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0900000000-9d87f412fc1d8edfb6dcSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0pb9-0900000000-b0b312814568ad1a089cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a6r-9500000000-2d96be3fb0e31d3a6f73Spectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Normal Concentrations
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Male
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Male
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB02795
Phenol Explorer Compound ID425
FooDB IDFDB010587
KNApSAcK IDC00029536
Chemspider ID10181338
KEGG Compound IDC02519
BioCyc IDCPD-1076
BiGG IDNot Available
Wikipedia LinkP-Anisic_acid
METLIN IDNot Available
PubChem Compound7478
PDB IDNot Available
ChEBI ID40813
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB ID
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Kubo I, Chen QX, Nihei K, Calderon JS, Cespedes CL: Tyrosinase inhibition kinetics of anisic acid. Z Naturforsch C. 2003 Sep-Oct;58(9-10):713-8. [PubMed:14577637 ]
  2. Thoma H, Reiner J, Spiteller G: Profiles of strongly polar and less polar acids obtained from human blood, plasma and serum by two-step ultrafiltration. J Chromatogr. 1984 Jul 13;309(1):17-32. [PubMed:6480763 ]
  3. Todoriki H, Hayashi T, Naruse H: High-performance liquid chromatographic method for screening disorders of aromatic acid metabolism using a multi-detection system. J Chromatogr. 1984 Oct 12;310(2):273-81. [PubMed:6511847 ]
  4. Shirane M, Nakamura K: Aniracetam enhances cortical dopamine and serotonin release via cholinergic and glutamatergic mechanisms in SHRSP. Brain Res. 2001 Oct 19;916(1-2):211-21. [PubMed:11597608 ]


General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone.
Gene Name:
Uniprot ID:
Molecular weight:
p-Anisic acid → 3,4,5-trihydroxy-6-(4-methoxybenzoyloxy)oxane-2-carboxylic aciddetails
General function:
Involved in glycine N-acyltransferase activity
Specific function:
Mitochondrial acyltransferase which transfers an acyl group to the N-terminus of glycine and glutamine, although much less efficiently. Can conjugate numerous substrates to form a variety of N-acylglycines, with a preference for benzoyl-CoA over phenylacetyl-CoA as acyl donors. Thereby detoxify xenobiotics, such as benzoic acid or salicylic acid, and endogenous organic acids, such as isovaleric acid.
Gene Name:
Uniprot ID:
Molecular weight:
p-Anisic acid → 2-[(4-methoxyphenyl)formamido]acetic aciddetails