Chlorpyrifos

Chlorpyrifos (CAS 2921-88-2) — formula C9H11Cl3NO3PS, molecular weight 350.6.

Product Overview

Applications

Documented applications: Uses: Widely used in homes and on farms for cockroaches, fleas, termites, ticks, and crop pests, [ATSDR ToxFAQs], Farming (Pesticides) [Category: Industry], For chlorpyrifos (USEPA, OPP Pesticide Code: 059101) ACTIVE products with label matches., SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Chlorpyrifos is an organophosphate insecticide, acaricide, and miticide used to control foliage and soil-borne insect pests on a variety of food and feed crops., ... Broad-spectrum organophosphate insecticide with wide spread use on food commodities, turf, and ornamental plants. ... commonly used indoors to control structural pests. It is one of the most widely used pesticides in the United States and has been one of the top five insecticides used in residential settings ..., Insecticide, Used for control of Coleoptera, Diptera, Homoptera and Lepidoptera in soil or on foliage in over 100 crops, including pome fruit, stone fruit, citrus fruit, nut crops, strawberries, figs, bananas, vines, vegetables, potatoes, beet, tobacco, soya beans, sunflowers, sweet potatoes, peanuts, rice, cotton, alfalfa, cereals, maize, sorghum, asparagus, glasshouse and outdoor ornamentals, and in forestry. Also used for control of household pests, mosquitoes (larvae and adults) and in animal houses., For more Uses (Complete) data for CHLORPYRIFOS (6 total), please visit the HSDB record page., Chlorpyrifos is used as a pesticide. In the home, it is used to control cockroaches, and termites, it is also used in some pet flea and tick collars. On the farm, it is used to control ticks on cattle and as a spray to control crop pests. (L268), Use Classification: Chemical Classes -> Organophosphates and carbamates, Insecticides, Environmental transformation -> Pesticides (parent, predecessor), Environmental transformation -> Pesticide transformation products (metabolite, successor), INSECTICIDES, Household Products: Information on 18 consumer products that contain Chlorpyrifos in the following categories is provided:, • Inside the Home, • Pesticides, • Pet Care, Methods of Manufacturing: Chlorpyrifos can be prepared by reaction of 3, 5, 6-trichloro-2-pyridinol with diethyl phosphorochloridothioate in the presence of sodium carbonate., Preparation: R. H. Rigterink, France 1360901, idem United States of America 3244586 (1964, 1966, both to Dow), Impurities:, SRP, : diethyl sulfide & diethyl disulfide are volatile contaminants which are partly responsible for the offensive odor of the technical grade., Impurities, found in the technical product (94.0% active ingredient), ... included: some residual solvent, methylene chloride, unreacted O, O-diethyl-phosphorochloridothioate, 3, 6-trichloro-2-pyridinol, the S-ethyl isomer of chlorpyrifos, and other isomeric and related chloropyridyl phosphorothioates and phosphates, compounds related to 3, and trace amounts of sulfotep., O-Ethyl O, O-bis(3, 6-trichloro-2-pyridyl) phosphorothioate does not occur as a significant impurity in, technical product (94.0% of active ingredient), ., Formulations, Preparations: The National Pesticide Information Retrieval System (NPIRS) identifies 32 companies with active labels for products containing the chemical chlorpyrifos. To view the complete list of companies, product names and percent chlorpyrifos in formulated products click the following url and enter the CAS Registry number in the Active Ingredient field., Chlorpyrifos SPC 2.32% G Insecticide (Nufarm Americas, Inc.): Active ingredient: chlorpyrifos 2.32%., Nufarm Chlorpyrifos SPC 1.0% MCB Insecticide (Nufarm Americas, Inc.): Active ingredient: chlorpyrifos 1.0%., Nufarm Chlorpyrifos SPC 4 Insecticide (Nufarm Americas, Inc.): Active ingredient: chlorpyrifos 44.7%., For more Formulations, Preparations (Complete) data for CHLORPYRIFOS (43 total), Consumption Patterns: Approximately 10 million pounds are applied annually in agricultural settings. The largest agricultural market for chlorpyrifos in terms of total pounds ai is corn (ca 5.5 million)., Chlorpyrifos use as a termiticide is significant, with a recent estimate of seven million pounds ai applied annually, constituting about 30% of the total annual use., INSECTICIDE USED ON CORN, 39%, ALFALFA, 6%, COTTON, 3%, SORGHUM, 1%, OTHER FIELD CROPS-EG, CITRUS & DECIDUOUS FRUITS, NUTS, 21%, NON-AGRICULTURAL USES, 31% (1982), (1978) 4.00X10+9 G (CONSUMPTION), (1982) 3.27X10+9 G (CONSUMPTION), General Manufacturing Information: The WHO Recommended Classification of Pesticides by Hazard identifies chlorpyrifos (technical grade) as Class II: moderately hazardous, Main Use: insecticide., Types and methods of application: Ground and aerial, spray and dust applications., Application rates: Range from 0.5 lb active ingredient (ai), acre to 3 lb active ingredient (ai), acre, and crack and crevice treatment to broadcast treatment for indoor uses., Dursban is a, trademark for insecticides containing O, O-diethyl-O-3, 6-trichloro-2-pyridyl phosphorothioate., For more General Manufacturing Information (Complete) data for CHLORPYRIFOS (7 total).

Technical Profile

What this product is

Chlorpyrifos is a chemical compound with CAS registry number 2921-88-2 and molecular formula C9H11Cl3NO3PS (molecular weight 350.6).

Identification

CAS number: 2921-88-2

Its molecular formula C9H11Cl3NO3PS comprises 9 C, 11 H, 3 Cl, 1 N, 3 O, 1 P, 1 S atoms.

Also known as: Chlorpyrifos · 毒死蜱

Frequently Asked Questions

PubChem Public Data

Related Products