Chlorpyrifos-methyl

Chlorpyrifos-methyl Basic information
Product Name:Chlorpyrifos-methyl
Synonyms:Chloropyrifos-methyl;Chloropyriphos-methyl;Cooper graincote;Dowco 214;dowco214;Dowco-214;Dursban methyl;dursbanmethyl
CAS:5598-13-0
MF:C7H7Cl3NO3PS
MW:322.53
EINECS:227-011-5
Product Categories:MetabolitesPesticides;Organophorous;AcaricidesPesticides&Metabolites;Alpha sort;C;INSECTICIDE;CHEnvironmental Standards;CAlphabetic;Insecticides;Pesticides;Pesticides&Metabolites
Mol File:5598-13-0.mol
Chlorpyrifos-methyl Structure
Chlorpyrifos-methyl Chemical Properties
Melting point 45.5-46.5°C
Boiling point 347.3±52.0 °C(Predicted)
density 1.64 g/cm3(Temp: 23 °C)
Fp >100 °C
storage temp. APPROX 4°C
solubility Chloroform: Slightly Soluble
pka-5.59±0.10(Predicted)
form Crystalline Solid
color Amber
Water Solubility 4mg/L(25 ºC)
Merck 13,2208
BRN 1541078
CAS DataBase Reference5598-13-0(CAS DataBase Reference)
NIST Chemistry Referenceo,o-Dimethyl-o-(3,5,6-trichloro-2-pyridyl)phosphorothioate(5598-13-0)
EPA Substance Registry SystemChlorpyrifos-methyl (5598-13-0)
Safety Information
Hazard Codes Xi;N,N,Xi,Xn,F
Risk Statements 43-50/53-36-20/21/22-11
Safety Statements 36/37-60-61-36-26-16
RIDADR UN 3077
WGK Germany 2
RTECS TG0700000
HS Code 29333990
Hazardous Substances Data5598-13-0(Hazardous Substances Data)
MSDS Information
Chlorpyrifos-methyl Usage And Synthesis
DescriptionChlorpyrifos-methyl is a general use organophosphate insecticide registered in 1985. It is used for the control of stored grain pests, weevils, moths, borers, beetles and mealworms, red flour beetle, and grain moth; for seed treatment; and for warehouse. It is effective against rice stem borer, aphids, cutworms, plant and leaf hoppers, mole crickets and some moths, and stored grain pests. It is poorly soluble in water, moderately soluble in hexane and alcohols, and readily soluble in other organic solvents such as acetone, benzene, and chloroform.
Chemical PropertiesWhite or amber crystalline solid. May be dissolved in a flammable or combustible carrier solvent.
Chemical PropertiesChlorpyrifos-methyl is a general use organophosphate insecticide registered in 1985. It is used for the control of stored grain pests, weevils, moths, borers, beetles and mealworms, red fl our beetle, grain moth, for seed treatment. It is effective against rice stem borer, aphids, cutworms, plant and leaf hoppers, mole crickets, moths and stored grain pests. It is poorly soluble in water, moderately soluble in hexane and alcohols, and readily soluble in other organic solvents, such as acetone, benzene, and chloroform
UsesChlorpyriphos-methyl is an derivative of Chlorpyrifos (C425300), an insecticide that acts on the nervous system of insects by inhibiting acetylcholinesterase.
DefinitionChEBI: An organic thiophosphate that is O,O-dimethyl hydrogen phosphorothioate in which the hydrogen of the hydroxy group has been replaced by a 3,5,6-trichloropyridin-2-yl group.
General DescriptionColorless crystals. Corrosive to copper, brass, iron, and tin plate. Used as an insecticide.
Air & Water ReactionsHydrolyzed by strong acid and base.
Reactivity ProfileA chlorinated organophosphate derivative. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides. Chlorpyrifos-methyl is incompatible with strong acids and bases.
Health HazardExposures to chlorpyrifos-methyl cause excessive salivation, sweating, rhinorrhea and tearing, muscle twitching, blurred vision/dark vision, slurred speech, weakness, tremor, incoordination, headache, dizziness, nausea, vomiting, abdominal cramps, diarrhea, respiratory depression, tightness in chest, wheezing, productive cough, fl uid in lungs, and pin-point pupils. In cases of severe exposure and poisoning, chlorpyrifos-methyl causes seizures, incontinence, respiratory depression, loss of consciousness, respiratory paralysis, and death. Exposures to chlorpyrifos-methyl cause cholinesterase inhibition in workers, and the systemic toxicity includes body weight loss, decreased food consumption, and liver, kidney, and adrenal pathology
Agricultural UsesInsecticide: Chlorpyrifos-methyl is used on stored grain (for protection of stored food, feed oil, and seed grains against injury from stored grain weevils, moths, borers, beetles and mealworms including granary weevil, rice weevil, red flour beetle, confused flour beetle, saw-toothed grain beetle, Indian meal moth, and Angoumois grain moth, lessor grain borers), seed treatment, grain bin and warehouse. [14] In 2000, the registrants of chlorpyrifos-methyl requested voluntary cancellation of their products rather than committing to develop additional data for reregistration
Trade nameDOWCO-217®; NOLTRAN®; RELDAN®; RELDANE® , STORCIDE®; ZERTELL®
Safety ProfileModerately toxic by ingestion, intraperitoneal, and skin contact routes. A skin irritant. Experimental reproductive effects. When heated to decomposition it emits very toxic fumes of Cl-, NOx POx and SOxA pesticide.
Potential ExposureChlorpyrifos-methyl is a general use organophosphate insecticide for use on stored grain (for protection of stored food, feed oil, and seed grains against injury from stored grain weevils, moths, borers, beetles, and mealworms including granary weevil, rice weevil, red flour beetle, confused flour beetle, saw-toothed grain beetle, Indian meal moth, and Angoumois grain moth, lessor grain borers), seed treatment, grain bin, and warehouse.
ShippingUN2783 Organophosphorus pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN3018 Organophosphorus pesticides, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
IncompatibilitiesStrong oxidizers, strong acids, and alkalies. In the presence of strong reducing agents such as hydrides, organophosphates form highly toxic and flammable phosphine gas. Contact with oxidizers can cause the release of toxic oxides of phosphorus. Corrosive to copper, brass, iron, and tin plate.
Waste DisposalThis compound is 50% hydrolyzed in aqueous methanol solution @ pH 6 in 1930 days; and in 7.2 days at pH 9.96. Spray mixtures of <1% concentration are destroyed with an excess of 5.25% sodium hypochlorite in ,30 minutes @ 100°C; and in 24 hours @ 30°C. Concentrated (61.5%) mixtures are essentially destroyed by treatment with 100:1 volumes of the above sodium hypochlorite solution and steam in 10 minutes. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office
PrecautionsWorkplaces should have adequate washing facilities at all times during handling and these should be close to the site of handling. Eating, drinking, and smoking should be prohibited during handling and before washing after handling. Containers of chlorpyrifosmethyl should be kept away from foodstuffs, animal feed and their containers, and out of reach of children
Methylparaben β-Cypermethrin+Chlorpyrifos-methyl,E.C.(16%) Methyl Bensulfuron methyl N,N-Dimethylformamide Chlorpyrifos CHLORPYRIFOS-METHYL D6 Parathion-methyl CHLORPYRIFOS D10 Kresoxim-methyl Chlorpyrifos-methyl E.C. Thiophanate-methyl Dimethyl sebacate Clindamycin phosphate Chlorpyrifos-methyl METHYL THIOPHENE-2-CARBOXYLATE 2,5-Dichloropyridine SULPHOSUCCINIC ACID ESTER

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