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Record Information
Version3.6
Creation Date2012-09-13 11:44:16 UTC
Update Date2016-02-11 03:55:37 UTC
HMDB IDHMDB41856
Secondary Accession NumbersNone
Metabolite Identification
Common NameChlorpyrifos
DescriptionA study of the effects of chlorpyrifos on humans exposed over time showed that people exposed to high levels have autoimmune antibodies that are common in people with autoimmune disorders. There is a strong correlation to chronic illness associated with autoimmune disorders after exposure to chlorpyrifos. Among 50 farm pesticides studied, chlorpyrifos was one of two found to be associated with higher risks of lung cancer among frequent pesticide applicators than among infrequent or non-users. Pesticide applicators as a whole were found to have a 50% lower cancer risk than the general public, which is attributable to the nearly 50% lower smoking rate found among farm workers. However, applicators of chlorpyrifos had a 15% lower cancer risk than the general public, which the study suggests indicates a likely link between chlorpyrifos application and lung cancer. Chlorpyrifos (IUPAC name: O,O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate) is a crystalline organophosphate insecticide. It was introduced in 1965 by Dow Chemical Company and is known by many trade names (see table), including Dursban and Lorsban. It acts on the nervous system of insects by inhibiting acetylcholinesterase. Chlorpyrifos is an organophosphate, with potential for both acute toxicity at larger amounts and neurological effects in fetuses and children even at very small amounts. For acute effects, the EPA classifies chlorpyrifos as Class II: moderately toxic. The oral LD50 for chlorpyrifos in experimental animals is 32 to 1000 mg/kg. The dermal LD50 in rats is greater than 2000 mg/kg and 1000 to 2000 mg/kg in rabbits. The 4-hour inhalation LC50 for chlorpyrifos in rats is greater than 200 mg/m3. First registered in 1965 and marketed by Dow Chemical under the tradenames Dursban, Lorsban and Renoban, chlorpyrifos was a well known home and garden insecticide, and at one time it was one of the most widely used household pesticides in the US.
Structure
Thumb
Synonyms
ValueSource
Chlorpyrifos-ethylChEBI
ChlorpyriphosChEBI
m-ChlorpyrifosChEBI
O,O-Diethyl O-(3,5,6-trichloropyridin-2-yl) thiophosphateChEBI
O,O-Diethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioateChEBI
Phosphorothioic acid, O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) esterChEBI
TrichlorpyrphosChEBI
O,O-Diethyl O-(3,5,6-trichloropyridin-2-yl) thiophosphoric acidGenerator
O,O-Diethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioic acidGenerator
Phosphorothioate, O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) esterGenerator
BonidelHMDB
BrodanHMDB
ChloropyrifosHMDB
ChloropyriphosHMDB
Chlorpyriphos-ethylHMDB
ChlorpyrofosHMDB
ChlorpyrophosHMDB
CorobanHMDB
DanusbanHMDB
Detmol u.a.HMDB
dowco 179HMDB
DurmetHMDB
DursbanHMDB
Dursban 10CRHMDB
Dursban 2EHMDB
Dursban 4EHMDB
Dursban FHMDB
Dursban RHMDB
Empire 20HMDB
EquityHMDB
Ethyl chlorpyriphosHMDB
GeodinfosHMDB
KillmasterHMDB
LentrekHMDB
Lock-ONHMDB
LorsbanHMDB
O,O-Diaethyl-O-3,5,6-trichlor-2-pyridylmonothiophosphatHMDB
O,O-Diethyl O-(3,5,6-trichloro-2-pyridinyl)phosphorothioateHMDB
O,O-Diethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioateHMDB
O,O-Diethyl O-(3,5,6-trichloropyridin-2-yl) phosphorothioateHMDB
PageantHMDB
PiridaneHMDB
PyrinexHMDB
RadarHMDB
SilrifosHMDB
SpannitHMDB
StipendHMDB
SuSConHMDB
Suscon blueHMDB
Suscon greenHMDB
TafabanHMDB
TerialHMDB
ZidilHMDB
Chemical FormulaC9H11Cl3NO3PS
Average Molecular Weight350.586
Monoisotopic Molecular Weight348.926283546
IUPAC NameO,O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate
Traditional NameO,O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate
CAS Registry Number2921-88-2
SMILES
CCOP(=S)(OCC)OC1=C(Cl)C=C(Cl)C(Cl)=N1
InChI Identifier
InChI=1S/C9H11Cl3NO3PS/c1-3-14-17(18,15-4-2)16-9-7(11)5-6(10)8(12)13-9/h5H,3-4H2,1-2H3
InChI KeyInChIKey=SBPBAQFWLVIOKP-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as thiophosphate triesters. These are organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where exactly three R-groups are organyl groups.
KingdomOrganic compounds
Super ClassOrganophosphorus compounds
ClassOrganothiophosphorus compounds
Sub ClassOrganic thiophosphoric acids and derivatives
Direct ParentThiophosphate triesters
Alternative Parents
Substituents
  • Polyhalopyridine
  • Thiophosphate triester
  • Pyridine
  • Aryl halide
  • Aryl chloride
  • Heteroaromatic compound
  • Azacycle
  • Organoheterocyclic compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Organochloride
  • Organohalogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Toxin/Pollutant
Biofunction
  • Nutrient
ApplicationNot Available
Cellular locations
  • Membrane (predicted from logP)
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point42 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.00112 mg/mL at 24 °CNot Available
LogP4.96Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0014 mg/mLALOGPS
logP5.15ALOGPS
logP4.78ChemAxon
logS-5.4ALOGPS
pKa (Strongest Basic)-4.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area40.58 Å2ChemAxon
Rotatable Bond Count6ChemAxon
Refractivity79 m3·mol-1ChemAxon
Polarizability30.4 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
MSMass Spectrum (Electron Ionization)splash10-002b-8972000000-01227c0965379003bd5cView in MoNA
1D NMR1H NMR SpectrumNot Available
1D NMR13C NMR SpectrumNot Available
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biofluid LocationsNot Available
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID2629
KEGG Compound IDC14322
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia Linkchlorpyrifos
NuGOwiki LinkHMDB41856
Metagene LinkHMDB41856
METLIN IDNot Available
PubChem Compound2730
PDB IDNot Available
ChEBI ID34631
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available