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Record Information
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2020-06-15 17:04:51 UTC
Secondary Accession Numbers
  • HMDB00930
Metabolite Identification
Common Nametrans-Cinnamic acid
Descriptiontrans-Cinnamic acid, also known as (e)-cinnamic acid or phenylacrylic acid, belongs to the class of organic compounds known as cinnamic acids. These are organic aromatic compounds containing a benzene and a carboxylic acid group forming 3-phenylprop-2-enoic acid. trans-Cinnamic acid is a weakly acidic compound (based on its pKa). trans-Cinnamic acid exists in all living species, ranging from bacteria to humans. trans-Cinnamic acid is a sweet, balsam, and cinnamon tasting compound. Outside of the human body, trans-Cinnamic acid is found, on average, in the highest concentration within a few different foods, such as chinese cinnamons, olives, and lingonberries and in a lower concentration in redcurrants, red raspberries, and corianders. trans-Cinnamic acid has also been detected, but not quantified in, several different foods, such as common oregano, pepper (spice), fennels, pomegranates, and european cranberries. This could make trans-cinnamic acid a potential biomarker for the consumption of these foods. Cinnamic acid has been shown to be a microbial metabolite; it can be found in Alcaligenes, Brevibacterium, Cellulomonas, and Pseudomonas (PMID: 16349793 ). trans-Cinnamic acid is a potentially toxic compound.
(2E)-3-Phenyl-2-propenoic acidChEBI
(2E)-3-Phenylacrylic acidChEBI
(e)-3-Phenyl-2-propenoic acidChEBI
(e)-Cinnamic acidChEBI
Benzeneacrylic acidChEBI
trans-3-Phenylacrylic acidChEBI
(2E)-2-Phenyl-2-propenoic acidHMDB
(e)-3-Phenylacrylic acidHMDB
(e)-3-Phenylprop-2-enoic acidHMDB
trans-3-Phenyl-2-propenoic acidHMDB
Cinnamic acid, 14C-labeled CPDHMDB
Cinnamic acid, 2-(14)C-labeled CPDHMDB
Cinnamic acid, 3-(14)C-labeled CPDHMDB
Cinnamic acid, (Z)-isomerHMDB
Cinnamic acid, 2-(13)C-labeled CPDHMDB
Cinnamic acid, 3H-labeled CPD (e)-isomerHMDB
Cinnamic acid, 3H-labeled CPD (Z)-isomerHMDB
Cinnamic acid, ion(1-)-(e)-isomerHMDB
Cinnamic acid, sodium saltHMDB
Cinnamic acid, sodium salt(e)-isomerHMDB
Cinnamic acid, sodium salt(Z)-isomerHMDB
Cinnamic acid, (trans)-(e)-isomerHMDB
Cinnamic acid, 14C-labeled CPD (e)-isomerHMDB
Cinnamic acid, ion(1-)HMDB
Cinnamic acid, nickel (+2) saltHMDB
Cinnamic acid, potassium saltHMDB
Cinnamic acid, zinc salt(e)-isomerHMDB
Cinnamic acid, 13C-labeled CPDHMDB
Cinnamic acidHMDB
(2E)-3-Phenylprop-2-enoic acidHMDB
(2E)-Cinnamic acidHMDB
3-Phenyl-(e)-2-propenoic acidHMDB
3-Phenyl-2-propenoic acidHMDB
3-Phenylacrylic acidHMDB
Phenylacrylic acidHMDB
beta-Phenylacrylic acidHMDB
Β-phenylacrylic acidHMDB
trans-Cinnamic acidHMDB
Chemical FormulaC9H8O2
Average Molecular Weight148.1586
Monoisotopic Molecular Weight148.0524295
IUPAC Name(2E)-3-phenylprop-2-enoic acid
Traditional Namecinnamic acid
CAS Registry Number140-10-3
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as cinnamic acids. These are organic aromatic compounds containing a benzene and a carboxylic acid group forming 3-phenylprop-2-enoic acid.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCinnamic acids and derivatives
Sub ClassCinnamic acids
Direct ParentCinnamic acids
Alternative Parents
  • Cinnamic acid
  • Styrene
  • Benzenoid
  • Monocyclic benzene moiety
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors

Route of exposure:


Biological location:


Industrial application:

Physical Properties
Experimental Properties
Melting Point133 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.55 mg/mLNot Available
LogP2.13HANSCH,C ET AL. (1995)
Predicted Properties
Water Solubility0.62 g/LALOGPS
pKa (Strongest Acidic)4.51ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity43.06 m³·mol⁻¹ChemAxon
Polarizability15.43 ųChemAxon
Number of Rings1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (1 TMS)splash10-0ue9-0910000000-4a7bcdfadd383bf577dcSpectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (1 TMS)splash10-0fb9-6920000000-727a2eb761e6e52fb47dSpectrum
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-117i-2920000000-f0d9ccc40786362ae4adSpectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0ue9-0910000000-4a7bcdfadd383bf577dcSpectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0fb9-6920000000-727a2eb761e6e52fb47dSpectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-117i-2920000000-f0d9ccc40786362ae4adSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0ue9-2900000000-b105b3fcb63636d0d16fSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-0fl0-7930000000-f3ac0a061fb66ec84b5dSpectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-001i-0900000000-3107a2a1bec368528f82Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-0ufr-6900000000-b0299d34fa9bb16b8258Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0udi-0900000000-4a879de8ea4f3acb0ae2Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-0002-0900000000-88ad8c9c837a057bb2a5Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-0udi-0900000000-18280fe18e43043d9e21Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-0fb9-9600000000-04d36ba7639bc85e2023Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-004i-9000000000-a8417274c4493c5b5871Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negativesplash10-004i-9100000000-d3712417826a69667981Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-0002-0900000000-37c486fa03918355413cSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0f6t-0900000000-218a5babf0ab7c31c498Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0002-0900000000-88ad8c9c837a057bb2a5Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0udi-0900000000-e3a4fcaa911f14d3790dSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0fb9-9600000000-04d36ba7639bc85e2023Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-004i-9000000000-a8417274c4493c5b5871Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-004i-9100000000-d3712417826a69667981Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-0f6t-0900000000-218a5babf0ab7c31c498Spectrum
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-0udi-0900000000-f095c04fe81b2890cb1aSpectrum
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-0udi-0900000000-1bb9599f57d5b1c1688bSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0002-0900000000-37c486fa03918355413cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000t-0900000000-f5b771d960092fa83d2cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0uea-0900000000-58b4769b89ab3883fb05Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-6900000000-9f4710d90f0cafac6d7bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0900000000-d015607beb5136324414Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0f6t-0900000000-ff32add65ca52cbaae83Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0fb9-3900000000-f2450299b70c3ec0faecSpectrum
MSMass Spectrum (Electron Ionization)splash10-0f6t-6900000000-77686ecc684f3b46bea6Spectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
2D NMR[1H,1H] 2D NMR SpectrumNot AvailableSpectrum
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular Locations
  • Membrane
Biospecimen Locations
  • Saliva
Tissue LocationsNot Available
Normal Concentrations
SalivaDetected and Quantified0.869 +/- 1.14 uMAdult (>18 years old)Male
    • Sugimoto et al. (...
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound ID549
FooDB IDFDB012052
KNApSAcK IDC00029961
Chemspider ID392447
KEGG Compound IDC10438
BioCyc IDCPD-674
BiGG IDNot Available
Wikipedia LinkCinnamic_acid
PubChem Compound444539
PDB IDNot Available
ChEBI ID35697
Food Biomarker OntologyNot Available
VMH IDNot Available
Synthesis ReferenceZhu, Min; Shentu, Chao; Zhou, Zhong Shi. Microwave-assisted base-free synthesis of trans-cinnamic acids using hypervalent iodonium salts. Chinese Chemical Letters (2007), 18(3), 272-274.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Blanquet S, Meunier JP, Minekus M, Marol-Bonnin S, Alric M: Recombinant Saccharomyces cerevisiae expressing P450 in artificial digestive systems: a model for biodetoxication in the human digestive environment. Appl Environ Microbiol. 2003 May;69(5):2884-92. [PubMed:12732562 ]
  2. Boulat O, Gradwohl M, Matos V, Guignard JP, Bachmann C: Organic acids in the second morning urine in a healthy Swiss paediatric population. Clin Chem Lab Med. 2003 Dec;41(12):1642-58. [PubMed:14708889 ]
  3. Sarkissian CN, Shao Z, Blain F, Peevers R, Su H, Heft R, Chang TM, Scriver CR: A different approach to treatment of phenylketonuria: phenylalanine degradation with recombinant phenylalanine ammonia lyase. Proc Natl Acad Sci U S A. 1999 Mar 2;96(5):2339-44. [PubMed:10051643 ]
  4. Wahl HG, Hong Q, Stube D, Maier ME, Haring HU, Liebich HM: Simultaneous analysis of the di(2-ethylhexyl)phthalate metabolites 2-ethylhexanoic acid, 2-ethyl-3-hydroxyhexanoic acid and 2-ethyl-3-oxohexanoic acid in urine by gas chromatography-mass spectrometry. J Chromatogr B Biomed Sci Appl. 2001 Jul 15;758(2):213-9. [PubMed:11486831 ]
  5. Larue C, Munnich A, Charpentier C, Saudubray JM, Frezal J, Remy MH, Rivat C: An extracorporeal hollow-fiber reactor for phenylketonuria using immobilized phenylalanine ammonia lyase. Dev Pharmacol Ther. 1986;9(2):73-81. [PubMed:3956347 ]
  6. Olivera ER, Carnicero D, Jodra R, Minambres B, Garcia B, Abraham GA, Gallardo A, Roman JS, Garcia JL, Naharro G, Luengo JM: Genetically engineered Pseudomonas: a factory of new bioplastics with broad applications. Environ Microbiol. 2001 Oct;3(10):612-8. [PubMed:11722541 ]
  7. Lee HS, Beon MS, Kim MK: Selective growth inhibitor toward human intestinal bacteria derived from Pulsatilla cernua root. J Agric Food Chem. 2001 Oct;49(10):4656-61. [PubMed:11600003 ]
  8. Douros JD, Frankenfeld JW: Effects of Culture Conditions on Production of trans-Cinnamic Acid from Alkylbenzenes by Soil Microorganisms. Appl Microbiol. 1968 Feb;16(2):320-5. [PubMed:16349793 ]


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:
trans-Cinnamic acid → 3,4,5-trihydroxy-6-{[(2E)-3-phenylprop-2-enoyl]oxy}oxane-2-carboxylic aciddetails