Record Information
Version1.0
Creation Date2014-09-11 05:20:18 UTC
Update Date2026-05-14 19:59:58 UTC
Accession NumberCHEM003830
Identification
Common NameEthoxyquin
ClassSmall Molecule
Description
Ethoxyquin is an antioxidant used in animal feeds and for the preservation of colour in the production of chili powder, paprika and ground chilli. Ethoxyquin is formerly used as an agricultural pesticide/herbicide, now superseded. Also used as a post-harvest dip for apples and pears to prevent scald.
Contaminant Sources
  • EAFUS Chemicals
  • FooDB Chemicals
  • HPV EPA Chemicals
  • My Exposome Chemicals
  • STOFF IDENT Compounds
  • T3DB toxins
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Amine
  • Ether
  • Food Toxin
  • Herbicide
  • Industrial/Workplace Toxin
  • Metabolite
  • Organic Compound
  • Pesticide
  • Synthetic Compound
Chemical Structure
Synonyms
ValueSource
1,2-Dihydro-2,2,4-trimethyl-6-ethoxyquinolineChEBI
1,2-Dihydro-2,2,4-trimethyl-6-quinolyl ethyl etherChEBI
1,2-Dihydro-6-ethoxy-2,2,4-trimethylquinolineChEBI
2,2,4-Trimethyl-6-ethoxy-1,2-dihydroquinolineChEBI
6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinolineChEBI
e 324ChEBI
e324ChEBI
EthoxyquineChEBI
Ethyl 2,2,4-trimethyl-1,2-dihydro-6-quinolinyl etherChEBI
Ethyl 2,2,4-trimethyl-1,2-dihydro-6-quinolyl etherChEBI
SantoquinMeSH
6-ETMDQMeSH
6-Ethoxy-2,2,4-trimethyl-1,2-dihydroquinolineMeSH
(-)-LobelineHMDB
2,2, 4-Trimethyl-6-ethoxy-1,2-dihydroquinolineHMDB
6-(Ethyloxy)-2,2,4-trimethyl-1,2-dihydroquinolineHMDB
6-Ethoxy-1, 2-dihydro-2,2,4-trimethylquinolineHMDB
6-Ethoxy-1,2-dihydro-2,2,4-trimethyl-quinolineHMDB
6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, 9ci, 8ciHMDB
6-Ethoxy-2,2,4-trimethyl-1, 2-dihydroquinolineHMDB
Alterungsschutzmittel ecHMDB
Antage awHMDB
Antioxidant ecHMDB
AntoxHMDB
Aries antoxHMDB
Dawe'S nutrigardHMDB
EMQHMDB
EQHMDB
EthoxychinHMDB
LobelineHMDB
NiflexHMDB
Niflex DHMDB
Nix-scaldHMDB
Nocrac awHMDB
Nocrack awHMDB
Permanax 103HMDB
PolyflexHMDB
Quinol edHMDB
SantoflexHMDB
Santoflex aHMDB
Santoflex awHMDB
SantoquineHMDB
SantoquineqHMDB
Stop-scaldHMDB
Chemical FormulaC14H19NO
Average Molecular Mass217.307 g/mol
Monoisotopic Mass217.147 g/mol
CAS Registry Number91-53-2
IUPAC Name6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline
Traditional Nameethoxyquin
SMILESCCOC1=CC2=C(NC(C)(C)C=C2C)C=C1
InChI IdentifierInChI=1S/C14H19NO/c1-5-16-11-6-7-13-12(8-11)10(2)9-14(3,4)15-13/h6-9,15H,5H2,1-4H3
InChI KeyDECIPOUIJURFOJ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as hydroquinolones. Hydroquinolones are compounds containing a hydrogenated quinoline bearing a ketone group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassQuinolines and derivatives
Sub ClassQuinolones and derivatives
Direct ParentHydroquinolones
Alternative Parents
Substituents
  • Dihydroquinolone
  • Dihydroquinoline
  • Alkyl aryl ether
  • Secondary aliphatic/aromatic amine
  • Benzenoid
  • Azacycle
  • Secondary amine
  • Ether
  • Amine
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceNot Available
Experimental Properties
PropertyValue
Melting Point0°C (32°F)
Boiling Point124°C (255.2°F)
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.25 g/LALOGPS
logP4.01ALOGPS
logP3ChemAxon
logS-2.9ALOGPS
pKa (Strongest Basic)5.15ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area21.26 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity69.68 m³·mol⁻¹ChemAxon
Polarizability25.93 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
External Links
DrugBank IDNot Available
HMDB IDHMDB0039531
FooDB IDFDB019147
Phenol Explorer IDNot Available
KNApSAcK IDC00052159
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkEthoxyquin
Chemspider ID3177
ChEBI ID77323
PubChem Compound ID3293
Kegg Compound IDC07475
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSLink
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=16199076
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=20093172
3. https://www.ncbi.nlm.nih.gov/pubmed/?term=20334189
4. https://www.ncbi.nlm.nih.gov/pubmed/?term=21902931
5. https://www.ncbi.nlm.nih.gov/pubmed/?term=23063794
6. https://www.ncbi.nlm.nih.gov/pubmed/?term=23955554
7. https://www.ncbi.nlm.nih.gov/pubmed/?term=24127661
8. https://www.ncbi.nlm.nih.gov/pubmed/?term=24161146
9. https://www.ncbi.nlm.nih.gov/pubmed/?term=27350330
10. https://www.ncbi.nlm.nih.gov/pubmed/?term=32760978
11. https://www.ncbi.nlm.nih.gov/pubmed/?term=34607038
12. https://www.ncbi.nlm.nih.gov/pubmed/?term=4927196
13. https://www.ncbi.nlm.nih.gov/pubmed/?term=674008
14. https://www.ncbi.nlm.nih.gov/pubmed/?term=6769055
15. Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.