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Record Information
Created at2005-11-16 15:48:42 UTC
Updated at2020-11-24 22:12:10 UTC
NP-MRD IDNP0000019
Secondary Accession NumbersNone
Natural Product 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 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. A methoxybenzoic acid substituted with a methoxy group at position C-4.
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
Spectrum TypeDescriptionView
1D NMR1H NMR SpectrumJSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumJSpectraViewer
Species of Origin
SpeciesAnimalia; Plantae
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 Parents
  • P-methoxybenzoic acid or derivatives
  • Benzoic acid
  • Anisole
  • Phenoxy compound
  • Benzoyl
  • Phenol ether
  • Methoxybenzene
  • Alkyl aryl ether
  • Monocarboxylic acid or derivatives
  • Ether
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organooxygen compound
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
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
User Submitted Data
Not Available
DrugBank IDDB02795
Phenol Explorer Compound ID425
FoodDB 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
General References
  1. 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 ]
  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. 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 ]
  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 ]