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Record Information
Version1.0
Created at2022-06-29 19:34:03 UTC
Updated at2022-06-29 19:34:03 UTC
NP-MRD IDNP0138974
Secondary Accession NumbersNone
Natural Product Identification
Common Name2-Ethylhexyl trans-4-methoxycinnamate
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. It was first documented in 2006 (PMID: 16614896). Absorbs UV-B (predominantly) and UV-A rays while accumulating in the outermost layer of the epidermis.
Structure
Thumb
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 Mass290.3972 Da
Monoisotopic Mass290.18819 Da
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
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of OriginNot Available
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
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
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
HMDB IDHMDB0061861
DrugBank IDDB09496
Phenol Explorer Compound IDNot Available
FoodDB 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
Good Scents IDNot Available
References
General References
  1. Lee GS, Widjaja A, Ju YH: Enzymatic synthesis of cinnamic acid derivatives. Biotechnol Lett. 2006 Apr;28(8):581-5. doi: 10.1007/s10529-006-0019-2. [PubMed:16614896 ]