Record Information
Version1.0
Creation Date2016-09-30 22:49:13 UTC
Update Date2020-05-11 20:48:55 UTC
MCDB ID BMDB0001964
Secondary Accession Numbers
  • BMDB01964
Metabolite Identification
Common NameCaffeic acid
DescriptionCaffeic acid, also known as caffeate, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. Caffeic acid exists as a solid, possibly soluble (in water), and an extremely weak basic (essentially neutral) compound (based on its pKa) molecule. Caffeic acid exists in all living species, ranging from bacteria to humans. Caffeic acid is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound.
Structure
Thumb
Synonyms
ValueSource
3,4-Dihydroxy-trans-cinnamateChEBI
3,4-Dihydroxycinnamic acidChEBI
trans-CaffeateChEBI
3,4-Dihydroxy-trans-cinnamic acidGenerator
3,4-DihydroxycinnamateGenerator
CaffeateGenerator
Caffeic acid, monosodium saltHMDB
Caffeic acid, (e)-isomerHMDB
Sodium caffeateHMDB
(2E)-(3,4-Dihydroxyphenyl)-2-propenoic acidHMDB
(2E)-3-(3,4-Dihydroxyphenyl)-2-propenoic acidHMDB
(e)-3,4-Dihydroxycinnamic acidHMDB
(e)-3-(3,4-Dihydroxyphenyl)-2-propenoic acidHMDB
(e)-3-(3,4-Dihydroxyphenyl)acrylic acidHMDB
(e)-Caffeic acidHMDB
3,4-Dihydroxybenzeneacrylic acidHMDB
3-(3,4-Dihydroxyphenyl)-2-propenoic acidHMDB
3-(3,4-Dihydroxyphenyl)propenoic acidHMDB
4-(2'-Carboxyvinyl)-1,2-dihydroxybenzeneHMDB
4-(2-Carboxyethenyl)-1,2-dihydroxybenzeneHMDB
4-(2’-carboxyvinyl)-1,2-dihydroxybenzeneHMDB
DHCAHMDB
trans-3,4-Dihydroxycinnamic acidHMDB
Caffeic acidHMDB
3',4'-Dihydroxycinnamic acidHMDB
(2E)-3-(3,4-Dihydroxyphenyl)prop-2-enoic acid;HMDB
Chemical FormulaC9H8O4
Average Molecular Weight180.1574
Monoisotopic Molecular Weight180.042258744
IUPAC Name(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
Traditional Namecaffeic acid
CAS Registry Number331-39-5
SMILES
OC(=O)\C=C\C1=CC(O)=C(O)C=C1
InChI Identifier
InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2+
InChI KeyQAIPRVGONGVQAS-DUXPYHPUSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCinnamic acids and derivatives
Sub ClassHydroxycinnamic acids and derivatives
Direct ParentHydroxycinnamic acids
Alternative Parents
Substituents
  • Cinnamic acid
  • Coumaric acid or derivatives
  • Hydroxycinnamic acid
  • Catechol
  • Styrene
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Monocyclic benzene moiety
  • Benzenoid
  • Carboxylic acid derivative
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic oxide
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point225 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP1.15SANGSTER (1993)
Predicted Properties
PropertyValueSource
logP1.67ALOGPS
logP1.53ChemAxon
logS-2ALOGPS
pKa (Strongest Acidic)3.64ChemAxon
pKa (Strongest Basic)-6.3ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area77.76 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity47.02 m³·mol⁻¹ChemAxon
Polarizability17.34 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-014i-1593000000-b24e97b50ed1f50252f32014-06-16View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-001i-9800000000-bae43e98e22babcbf5a72017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-000i-9600000000-6140146b8e32bda5e3c92017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-014i-0593000000-16610dfa8ac4ac67a4c22017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-014i-1593000000-b24e97b50ed1f50252f32017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-014i-0592000000-1bb03bc99be6718d247e2017-09-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-1900000000-6a963e50b910f05b68252016-09-22View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (3 TMS) - 70eV, Positivesplash10-00e9-5039000000-d55c6a31e04536d33b582017-10-06View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-000i-0900000000-90ad608487db4c1124692021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-001i-0900000000-dcc07d9a43defb5683a02021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-762c7a39be8e2819bc512021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-0019-4900000000-e716811ee5cf56acce9e2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-037f59c6ff1daadca2a02021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-0019-6900000000-a67fe3c28be25c2fa72b2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Negativesplash10-0019-1900000000-62d755ec157c381054b32021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-6c93facd0d3caabc67f12021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-001r-0900000000-7b2d4553b6a25b853d4b2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-000i-0900000000-3ed879b5217c5d703cd52021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-000i-0900000000-bddc5a2872c93f7185ba2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-000i-9600000000-376ae5146fc0f93c9ff52021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-004i-0900000000-7d707e3512f8df7d6c532021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Negativesplash10-000i-0900000000-c904417e68f103c0c9632021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - DI-ESI-qTof , Positivesplash10-03di-0900000000-f31bbdf32d6b72a381e72017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-000i-9000000000-ad7b879926d9c809f9c82021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-014s-1900000000-d3c79213f8f23833fadc2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-3adb4dbfdaeb614b61e62021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-000i-9000000000-8f7413c3605b295159312021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-03di-2900000000-467621cde3e4486ad6bf2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Positivesplash10-014i-0900000000-7fdae010c3ffe7ab11562021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 50V, Positivesplash10-000i-9000000000-a67e2178525a89f45da92021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-8407d64b83bf427de33f2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-03dr-0900000000-91200c128446226f6ecb2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-2ec4b8c30dbd96e112282021-09-20View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Not Available2022-08-20View Spectrum
Concentrations
StatusValueReferenceDetails
Detected but not QuantifiedNot Applicable details
HMDB IDHMDB0001964
DrugBank IDDB01880
Phenol Explorer Compound IDNot Available
FoodDB IDFDB002559
KNApSAcK IDC00000615
Chemspider ID600426
KEGG Compound IDC01481
BioCyc IDCPD-676
BiGG IDNot Available
Wikipedia LinkCaffeic_acid
METLIN IDNot Available
PubChem Compound689043
PDB IDNot Available
ChEBI ID16433
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Mung D, Li L: Development of Chemical Isotope Labeling LC-MS for Milk Metabolomics: Comprehensive and Quantitative Profiling of the Amine/Phenol Submetabolome. Anal Chem. 2017 Apr 18;89(8):4435-4443. doi: 10.1021/acs.analchem.6b03737. Epub 2017 Mar 28. [PubMed:28306241 ]