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 and Quantified
Creation Date2006-05-22 14:17:55 UTC
Update Date2019-07-23 05:45:34 UTC
Secondary Accession Numbers
  • HMDB02511
Metabolite Identification
Common Name3,4,5-Trimethoxycinnamic acid
Description3,4,5-Trimethoxycinnamic acid is an organic acid found in normal human urine. (PMID: 6992730 , 6511847 ). Trimethoxycinnamate is a natural aromatic ester from Piper longum that inhibits expression of cell adhesion molecules on endothelial cells (TNF- -induced expression of intercellular adhesion molecule-1 (ICAM-1) and E-Selectin and vascular adhesion molecules-1 (VCAM-1)), without being toxic to endothelial cells. (PMID: 16313198 ).
3,4,5-Trimethoxy cinnamateHMDB
3,4,5-Trimethoxy cinnamic acidHMDB
3,4,5-Trimethoxyphenylacrylic acidHMDB
O-Methylsinapic acidHMDB
3,4,5-Trimethoxycinnamic acidMeSH
3-(3,4,5-Trimethoxyphenyl)-2-propenoic acidMeSH
Chemical FormulaC12H14O5
Average Molecular Weight238.2366
Monoisotopic Molecular Weight238.084123558
IUPAC Name(2E)-3-(3,4,5-trimethoxyphenyl)prop-2-enoic acid
Traditional Name3,4,5-trimethoxycinnamic acid
CAS Registry Number90-50-6
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as coumaric acids and derivatives. These are aromatic compounds containing Aromatic compounds containing a cinnamic acid moiety (or a derivative thereof) hydroxylated at the C2 (ortho-), C3 (meta-), or C4 (para-) carbon atom of the benzene ring.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCinnamic acids and derivatives
Sub ClassHydroxycinnamic acids and derivatives
Direct ParentCoumaric acids and derivatives
Alternative Parents
  • Cinnamic acid
  • Coumaric acid or derivatives
  • Phenoxy compound
  • Anisole
  • Methoxybenzene
  • Styrene
  • Phenol ether
  • Alkyl aryl ether
  • Monocyclic benzene moiety
  • Benzenoid
  • Carboxylic acid derivative
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Ether
  • Organic oxygen compound
  • Carbonyl group
  • Organic oxide
  • Organooxygen compound
  • Hydrocarbon derivative
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available

Biological location:


Physical Properties
Experimental Properties
Melting Point126 - 128 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility0.21 g/LALOGPS
pKa (Strongest Acidic)3.71ChemAxon
pKa (Strongest Basic)-4.4ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area64.99 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity62.45 m³·mol⁻¹ChemAxon
Polarizability24.17 ųChemAxon
Number of Rings1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-0019-5980000000-481902850188a4b983e1JSpectraViewer | MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-000i-0290000000-577fe3f81fdd216fe76bJSpectraViewer | MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0019-5980000000-481902850188a4b983e1JSpectraViewer | MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00dl-1690000000-4bdc2e168c37e0d8c46eJSpectraViewer | MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00dm-7390000000-279ac79fde7a9d1eb827JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-000i-0890000000-73d378c5d062a4380537JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-014r-0900000000-7d415b23b8c22936e972JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0006-9000000000-b27641d2926e1d3e69edJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-qTof , Positivesplash10-03dl-2900000000-a43198a76493a4d0f488JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-0f89-0910000000-f321fbc297d524d25e5eJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-0f89-0910000000-098ef1a616ba7aacdd8bJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-00di-0190000000-a53a43c16d61d22ba5fdJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-00dl-0970000000-e99d426adbbcf08b402bJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-01ox-0910000000-eb35950d925bbd52e2e7JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-00di-0190000000-c166d05b1d38a4369d13JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-00di-0190000000-8e02e6181e389f2fce58JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-00di-0190000000-b96acc7d851ea2cbe471JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-00di-0190000000-c690fb44764739147531JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-00dj-0690000000-37f50a89d80a7d8e7b7cJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-00dj-0790000000-a0f7d5eacf28002d6c1eJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-001i-0590000000-5e15df23e1760f95e514JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-001i-0490000000-528be5b0367f05c60956JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-03dl-2900000000-a43198a76493a4d0f488JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-01vo-0920000000-f5f28fbcb7e0a5bb9b80JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0190000000-f80ae28c9584a754308fJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00dl-1980000000-6202f47e101d4e1eb445JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-01tc-4900000000-467e437210b7102853bcJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0190000000-43a9af4188e370a734b8JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00kr-0590000000-cc97b3e7c9a32a9bebd2JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-03dm-1900000000-e915c52fc0eac0cfe2b9JSpectraViewer | MoNA
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableJSpectraViewer
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Urine
Tissue LocationsNot Available
Normal Concentrations
UrineDetected and Quantified0.046 +/- 0.009 umol/mmol creatinineAdult (>18 years old)Male
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB023019
KNApSAcK IDNot Available
Chemspider ID642910
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
PubChem Compound735755
PDB IDNot Available
ChEBI IDNot Available
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Jenner AM, Rafter J, Halliwell B: Human fecal water content of phenolics: the extent of colonic exposure to aromatic compounds. Free Radic Biol Med. 2005 Mar 15;38(6):763-72. [PubMed:15721987 ]
  2. Kissling E: [The detection of Azotobacter and its significance in criminal technical soil examinations]. Arch Kriminol. 1980;165(1-2):27-34. [PubMed:6992730 ]
  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. Kumar S, Arya P, Mukherjee C, Singh BK, Singh N, Parmar VS, Prasad AK, Ghosh B: Novel aromatic ester from Piper longum and its analogues inhibit expression of cell adhesion molecules on endothelial cells. Biochemistry. 2005 Dec 6;44(48):15944-52. [PubMed:16313198 ]