Record Information
Creation date2011-09-21 00:18:32 UTC
Update date2015-10-09 22:32:40 UTC
Primary IDFDB022726
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name5-Methoxytryptophol
Description5-Methoxytryptophol is synthesized by the pineal gland. Daily rhythms in pineal methoxyindole metabolism have been described in rodents and humans (5-Methoxytryptophol levels are coincident with serotonin levels in rodents pineal) and 5-Methoxytryptophol at its highest during the daylight hours and fall markedly soon after the onset of darkness, coincident with increases in the levels of pineal melatonin and the activities of pineal serotonin-N-acetyltransferase (EC, SNAT) and hydroxyindole-O-methyltransferase (EC, HIOMT). The fact that the levels of 5-methoxytryptophol and melatonin vary in parallel suggests that the major factor generating the methoxyindole rhythms is not SNAT activity, but perhaps a change in the availability (for metabolism) of "stored" serotonin. When the onset of darkness is delayed by 12 hours, human 5-methoxytryptophol (and melatonin) rhythms usually require 3 or 4 days to adjust to the new lighting regimen. Environmental factors, other than light, that activate the sympathetic nervous system or cause epinephrine to be secreted from the adrenal medulla (e.g., the stress of immobilization; insulin-induced hypoglycemia) can override the inhibitory effects of light and accelerate melatonin synthesis. Rhythms in 5-methoxytryptophol (and melatonin) synthesis apparently persist among animals placed in environments of continuous darkness; the source of the cyclic signal (mediated by the pineal sympathetic nerves) has not yet been identified. Preliminary evidence suggests that levels of a peptide hormone, arginine vasotocin, in rat pineal and sera also exhibit daily rhythms and are increased by norepinephrine. The circadian rhythm of melatonin secretion is generated in the suprachiasmatic nucleus. Sleep disruption, nightly restlessness, sundowning, and other circadian disturbances are frequently seen in Alzheimer's disease patients. Changes in the suprachiasmatic nucleus and pineal gland are thought to be the biological basis for these behavioral disturbances. (PMID 288858, 2245336) [HMDB]
CAS Number712-09-4
Predicted Properties
Water Solubility0.64 g/LALOGPS
pKa (Strongest Acidic)15.83ChemAxon
pKa (Strongest Basic)-2.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area45.25 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity55.18 m³·mol⁻¹ChemAxon
Polarizability20.86 ųChemAxon
Number of Rings2ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC11H13NO2
IUPAC name2-(5-methoxy-1H-indol-3-yl)ethan-1-ol
InChI IdentifierInChI=1S/C11H13NO2/c1-14-9-2-3-11-10(6-9)8(4-5-13)7-12-11/h2-3,6-7,12-13H,4-5H2,1H3
Average Molecular Weight191.2264
Monoisotopic Molecular Weight191.094628665
Description Belongs to the class of organic compounds known as 3-alkylindoles. 3-Alkylindoles are compounds containing an indole moiety that carries an alkyl chain at the 3-position.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassIndoles
Direct Parent3-alkylindoles
Alternative Parents
  • 3-alkylindole
  • Anisole
  • Alkyl aryl ether
  • Substituted pyrrole
  • Benzenoid
  • Pyrrole
  • Heteroaromatic compound
  • Ether
  • Azacycle
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Alcohol
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physiological effect

Health effect:


Biological location:


Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
TypeDescriptionSplash KeyView
Predicted GC-MS5-Methoxytryptophol, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-03dj-0900000000-56fc4171bff27cc8b08fSpectrum
Predicted GC-MS5-Methoxytryptophol, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-00dj-4290000000-b6f1d2b77bcf63cdb2f6Spectrum
Predicted GC-MS5-Methoxytryptophol, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-006x-0900000000-8a87d83f5ab6d4e9e2cc2012-07-24View Spectrum
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-053r-0900000000-c2439fe463c8095a7d482012-07-24View Spectrum
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-001i-0900000000-8eaf28224968f5678d872012-07-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00dl-0900000000-1daafd240067b254f72c2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-0900000000-f1948c2696d6933b12882017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00l7-0900000000-e7c232e2fb6c1faceb852017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-0900000000-f761824cdb02ac2006c92017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-01ox-0900000000-10aea01d485547bbcdba2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-0900000000-f47925a67fbbcd379d7c2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-006x-0900000000-7be83e05ff8f3addc0802021-09-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03kc-0900000000-8ea363f0b61f5e752cb02021-09-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-0900000000-d3b88ac758801b950a732021-09-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-0900000000-6c413ff2e4d57d5c760e2021-09-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-0900000000-f0a15e47d2011150926a2021-09-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-052f-0900000000-bbc986579ed4331f0d9a2021-09-25View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, CD3OD, experimental)Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, Methanol, experimental)Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CD3OD, experimental)Spectrum
ChemSpider ID12305
KEGG Compound IDNot Available
Pubchem Compound ID12835
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference