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Record Information
Creation Date2013-04-25 07:56:54 UTC
Update Date2014-12-24 20:26:34 UTC
Accession NumberT3D3919
Common NameQuizalofop-ethyl
ClassSmall Molecule
DescriptionQuizalofop-ethyl is a selective, postemergence phenoxy herbicide. It is used to control annual and perennial grass weeds in potatoes, soybeans, sugar beets, peanuts vegetables, cotton and flax. The compound is absorbed from the leaf surface and is moved throughout the plant. It accumulates in the active growing regions of stems and roots.
Compound Type
  • Ester
  • Ether
  • Herbicide
  • Organic Compound
  • Organochloride
  • Pesticide
  • Synthetic Compound
Chemical Structure
Ethyl 2-{3-[(6-chloro-2-quinoxalinyl)oxy]phenoxy}propanoate
Ethyl 2-{3-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate
Chemical FormulaC19H17ClN2O4
Average Molecular Mass372.802 g/mol
Monoisotopic Mass372.088 g/mol
CAS Registry Number76578-14-8
IUPAC Nameethyl 2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate
Traditional Namequizalofop-P-ethyl
InChI IdentifierInChI=1S/C19H17ClN2O4/c1-3-24-19(23)12(2)25-14-5-7-15(8-6-14)26-18-11-21-17-10-13(20)4-9-16(17)22-18/h4-12H,3H2,1-2H3
Chemical Taxonomy
Description belongs to the class of organic compounds known as 2-phenoxypropionic acid esters. These are aromatic compounds hat contain a phenol ether attached to the C2-atom of a phenylpropionic acid ester.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub Class2-phenoxypropionic acid esters
Direct Parent2-phenoxypropionic acid esters
Alternative Parents
  • 2-phenoxypropionic acid ester
  • Diaryl ether
  • Phenoxyacetate
  • Diazanaphthalene
  • Quinoxaline
  • Phenol ether
  • Phenoxy compound
  • Alkyl aryl ether
  • Aryl chloride
  • Aryl halide
  • Pyrazine
  • Heteroaromatic compound
  • Carboxylic acid ester
  • Azacycle
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Ether
  • Monocarboxylic acid or derivatives
  • Organohalogen compound
  • Carbonyl group
  • Organopnictogen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organochloride
  • Organonitrogen compound
  • Organooxygen compound
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
AppearanceWhite powder.
Experimental Properties
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
LogPNot Available
Predicted Properties
Water Solubility0.0093 g/LALOGPS
pKa (Strongest Basic)0.058ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area70.54 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity95.37 m³·mol⁻¹ChemAxon
Polarizability37.44 ųChemAxon
Number of Rings3ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00ba-6293000000-13abdeaf0fbf4d1fdd732021-09-23View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 90V, Positivesplash10-0296-4920000000-bb3b70f924c66355c0022021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 60V, Positivesplash10-0006-4690000000-a8eb8fbf77b06a73a7e12021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 75V, Positivesplash10-00kf-5950000000-13336e32c2d3ce8584082021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 75V, Positivesplash10-00kf-5950000000-6842faea92a4c1d81a642021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 90V, Positivesplash10-0296-4920000000-d6ff4c0345017a7e828e2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Positivesplash10-0002-0090000000-4f9a9511324f68a09abc2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 45V, Positivesplash10-006x-2290000000-19c148404a1fae0574cd2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 60V, Positivesplash10-0006-4690000000-f539857ab644ec66fd7b2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Positivesplash10-0002-0090000000-f42a9598ee33a1d732812021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 15V, Positivesplash10-00di-0029000000-039ac27cc6bb228c8cb32021-09-20View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-1029000000-3c6dea6c908aff25d0ce2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-5295000000-0cf5b826eb1db5ee97012016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00fr-7490000000-233e20550181678d78072016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-3019000000-0def9723caafadbef0ff2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00fs-5169000000-87cd59c5dc62d09755d22016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-2930000000-f059964499670d9104ee2016-08-03View Spectrum
MSMass Spectrum (Electron Ionization)splash10-0h94-5794000000-1003978ed3403e6c8dd62014-10-20View Spectrum
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/SourcesThis is a man-made compound that is used as a pesticide.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID53518
ChemSpider ID48336
UniProt IDNot Available
ChEBI IDNot Available
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNot Available
Synthesis ReferenceNot Available
General ReferencesNot Available
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available


General Function:
Hydroxymethylglutaryl-coa synthase activity
Specific Function:
This enzyme condenses acetyl-CoA with acetoacetyl-CoA to form HMG-CoA, which is the substrate for HMG-CoA reductase.
Gene Name:
Uniprot ID:
Molecular Weight:
56634.915 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC503.90 uMCLZD_HMGCS2_24CellzDirect
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]