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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2014-10-08 15:56:05 UTC
Update Date2022-03-07 03:17:48 UTC
HMDB IDHMDB0061861
Secondary Accession Numbers
  • HMDB61861
Metabolite Identification
Common NameOctyl 4-methoxycinnamic acid
DescriptionOctyl 4-methoxycinnamic acid, also known as parsol or 2-ethylhexyl-4-methoxycinnamate, belongs to the class of organic compounds known as cinnamic acid esters. These are compound containing an ester derivative of cinnamic acid. Octyl 4-methoxycinnamic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). Its use in pharmaceutical and cosmetic formulations is approved by FDA. Acts as a photoprotective agent that protects the skin by preventing and minimizing the damaging effects of ultraviolet (UV) rays of natural light. It was originally developed in 1950's as an organic UV-B filter that absorbs UV-B rays from sun. Like any other photoprotective agents, octinoxate prevents the damage to cells and deoxyribonucleic acid (DNA) by reducing the p53 protein expression following UV exposure and also increases the skin's tolerability to UV rays . UV-induced molecular breakdown of octinoxate may interfere with cellular processes or induce oxidative damage in human skin . Can be enzymatically degraded by lipases in the stratum corneum where esters undergo hydrolysis . Octinoxate is a cinnamate ester and common ingredient in sunscreen and other skin care products to minimize DNA photodamage. Absorbs UV-B (predominantly) and UV-A rays while accumulating in the outermost layer of the epidermis.
Structure
Data?1563866240
Synonyms
ValueSource
Octyl methoxycinnamateKegg
ParsolKegg
Octyl methoxycinnamic acidGenerator
Octyl 4-methoxycinnamateGenerator
OCTINOXic acidHMDB
Heliopan newHMDB
OMC cinnamateHMDB
Parsol MCXHMDB
OctylmethoxycinnamateHMDB
2-Ethylhexyl-4-methoxycinnamateHMDB
2-Ethylhexyl-p-methoxycinnamateHMDB
Escalol 557HMDB
Octyl-methoxycinnamateHMDB
Chemical FormulaC18H26O3
Average Molecular Weight290.3972
Monoisotopic Molecular Weight290.188194698
IUPAC Name2-ethylhexyl (2E)-3-(4-methoxyphenyl)prop-2-enoate
Traditional Nameparsol
CAS Registry NumberNot Available
SMILES
[H]\C(=C(\[H])C1=CC=C(OC)C=C1)C(=O)OCC(CC)CCCC
InChI Identifier
InChI=1S/C18H26O3/c1-4-6-7-15(5-2)14-21-18(19)13-10-16-8-11-17(20-3)12-9-16/h8-13,15H,4-7,14H2,1-3H3/b13-10+
InChI KeyYBGZDTIWKVFICR-JLHYYAGUSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as cinnamic acid esters. These are compound containing an ester derivative of cinnamic acid.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCinnamic acids and derivatives
Sub ClassCinnamic acid esters
Direct ParentCinnamic acid esters
Alternative Parents
Substituents
  • Cinnamic acid ester
  • Phenoxy compound
  • Anisole
  • Methoxybenzene
  • Phenol ether
  • Styrene
  • Alkyl aryl ether
  • Fatty acid ester
  • Monocyclic benzene moiety
  • Fatty acyl
  • Benzenoid
  • Alpha,beta-unsaturated carboxylic ester
  • Enoate ester
  • Carboxylic acid ester
  • Monocarboxylic acid or derivatives
  • Ether
  • Carboxylic acid derivative
  • Organic oxide
  • Organooxygen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxygen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00045 g/LALOGPS
logP5.62ALOGPS
logP5.38ChemAxon
logS-5.8ALOGPS
pKa (Strongest Basic)-4.8ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area35.53 ŲChemAxon
Rotatable Bond Count10ChemAxon
Refractivity86.44 m³·mol⁻¹ChemAxon
Polarizability34.84 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+174.64231661259
DarkChem[M-H]-176.92531661259
DeepCCS[M+H]+168.21630932474
DeepCCS[M-H]-165.8230932474
DeepCCS[M-2H]-199.79130932474
DeepCCS[M+Na]+174.60330932474
AllCCS[M+H]+174.932859911
AllCCS[M+H-H2O]+171.932859911
AllCCS[M+NH4]+177.732859911
AllCCS[M+Na]+178.532859911
AllCCS[M-H]-174.732859911
AllCCS[M+Na-2H]-175.532859911
AllCCS[M+HCOO]-176.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Octyl 4-methoxycinnamic acid[H]\C(=C(\[H])C1=CC=C(OC)C=C1)C(=O)OCC(CC)CCCC2993.3Standard polar33892256
Octyl 4-methoxycinnamic acid[H]\C(=C(\[H])C1=CC=C(OC)C=C1)C(=O)OCC(CC)CCCC2183.7Standard non polar33892256
Octyl 4-methoxycinnamic acid[H]\C(=C(\[H])C1=CC=C(OC)C=C1)C(=O)OCC(CC)CCCC2134.0Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Octyl 4-methoxycinnamic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-06vi-9530000000-dfb5bc7b1b07173785132017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Octyl 4-methoxycinnamic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Octyl 4-methoxycinnamic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 50V, Positive-QTOFsplash10-001i-0900000000-d4a1e41c086413d0cf672021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 50V, Positive-QTOFsplash10-001i-0900000000-47b5b9c89e092811dc9d2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 30V, Positive-QTOFsplash10-03di-0900000000-f61c750cc4eee56412142021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 20V, Positive-QTOFsplash10-03di-0900000000-bef6ca3443465e6c192e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 40V, Positive-QTOFsplash10-03e9-0900000000-9b48952b6721ccf2a0d42021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 10V, Positive-QTOFsplash10-004i-0900000000-04c530c6956b0f1f054f2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 10V, Positive-QTOFsplash10-03dl-0950000000-7c75a171098f061df1d52016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 20V, Positive-QTOFsplash10-03di-3910000000-999432b0b3a154dc16c42016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 40V, Positive-QTOFsplash10-06r6-9400000000-f0de61dd27ceae8cac502016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 10V, Negative-QTOFsplash10-052r-0970000000-9b1d54a8c418b0e3d7dd2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 20V, Negative-QTOFsplash10-06vi-0910000000-29fe696309912eb4ba3d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 40V, Negative-QTOFsplash10-01r2-3900000000-58e02602b0c98e57a09c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 10V, Positive-QTOFsplash10-01r6-4970000000-a670cd89d51c4faa0f4b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 20V, Positive-QTOFsplash10-08ir-5910000000-378dcd5411abe5d4d8312021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 40V, Positive-QTOFsplash10-053u-9200000000-9025b50b69c626ee01d22021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 10V, Negative-QTOFsplash10-000i-0790000000-dffcbb803f602e4748f92021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 20V, Negative-QTOFsplash10-0a4r-0920000000-f1683c652bffc0f2fcad2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Octyl 4-methoxycinnamic acid 40V, Negative-QTOFsplash10-014i-0900000000-17d9a346b3a4b2ac552f2021-09-23Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Saliva
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
SalivaDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Not SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB09496
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound5355130
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Lee GS, Widjaja A, Ju YH: Enzymatic synthesis of cinnamic acid derivatives. Biotechnol Lett. 2006 Apr;28(8):581-5. [PubMed:16614896 ]