330-55-2

Usage

Uses

Used in Agriculture:
Linuron is used as a selective pre-emergence and post-emergence herbicide for a wide variety of food crops. It is effective in controlling many annual broad-leaved and grass weeds, ensuring healthy crop growth and increased yields.
Used in Soybean, Cotton, Potato, and Other Crops:
Linuron is applied as a preand post-emergent herbicide in crops such as soybean, cotton, potato, corn, bean, pea, winter wheat, asparagus, carrot, and fruit crops. It works by inhibiting photosynthesis in target weed plants, thus promoting the growth of desired crops.
Used in Stored Crop Protection:
Linuron is also utilized in warehouses and storerooms to control annual and perennial broadleaf and grassy weeds on stored crops, preventing damage and maintaining the quality of the stored produce.
Regulation:
The US Environmental Protection Agency (EPA) classifies Linuron as a Restricted Use Pesticide (RUP), indicating that its use is limited and requires specific knowledge and precautions to minimize potential risks to human health and the environment.

Air & Water Reactions

Hydrolyzed slowly by acids and bases.

Reactivity Profile

A urea derivative.

Health Hazard

Lowtomoderatelytoxicbyingestion—LD50varying with experimental animals; 4-hourexposure to its vapors at 48 mg/m3 was lethalto rats; toxic properties similar to those ofMonuron.LD50 oral (rat): 1146 mg/kgLD50 oral (mouse): 2400 mg/kgLD50 inhalation (rat): 48 mg/m3 /4 h.

Trade name

AFALON?; ALIBI?; ALISTELL?; BROADCIDE 20EC?; BRONOX?; CERTOLLIN ONIONS?; CLOVACORN EXTRA?; CROP WEEDSTOP?; DU PONT 326?[C]; FF6135' HERBICIDE 326?; GARNITAN?; H 326?; GEMINI?[C]; HERBICIDE 326?; HOE 2810?; JANUS?; LANDSIDE?; LINNET?; LINEX?; LINOROX?; LINUREX?; LOREX?; LOROX?[C]; MARKSMAN 1?; NEMINFEST?; ONSLAUGHT?; PRE-EMPT?; PREMALIN?; PROFALON?; ROTILIN?; SARCLEX?; SCARCLEX?; SINURON?; STAY KLEEN?; TEMPO?; TRIFARMON FL?; TRIFLURON?; TRILIN?; URANUS? (trifluralin + linuron); WARRIOR?

Safety Profile

Poison by inhalation. Moderately toxic by ingestion. Mutation data reported. A selective herbicide used in farming. Vlihen heated to decomposition it emits very toxic fumes of Cl and NOx. See also 3-@-CHLOROPHENYL)-1,1 DIMETHYLUREA.

Potential Exposure

Inhibits photosynthesis. Linuron is a selective, pre-emergence urea herbicide used to control grasses and broadleaf weeds in carrots, beans, peas, asparagus, maize, potatoes, soybeans, sorghum, wheat, bananas, coffee, cotton, and ornamentals. It is also used for control of annual weeds in storehouses, roadsides, fence rows and other noncrop lands. Linuron is frequently used in formulations with other herbicides, insecticides, and fungicides

Environmental Fate

Soil. Linuron degraded in soil forming the common metabolite 3,4-dichloroaniline (Duke et al., 1991). In an aerobic, biologically active, organic-rich, pond sediment, linuron was converted to the intermediate 3-(3-chlorophenyl)-1-methoxymethylurea. Linuron further degraded to unidentified compounds (Stepp et al., 1985).Linuron was degraded by Bacillus sphaericus in soil forming N,O-dimethylhydroxylamine and carbon dioxide (Engelhardt et al., 1972). Only 1 ppm 3,4-dichloroaniline was identified in soils after incubation of soils containing 500 ppm linuron (Belasco and PeThe half-lives for linuron in soil incubated in the laboratory under aerobic conditions ranged from 56 to 88 days with an average of 75 days (Moyer et al., 1972; Hance, 1974; Usorol and Hance, 1974). In field soils, the average half-life for linuron was 8Plant. Undergoes demethylation and demethoxylation in plants (Hartley and Kidd, 1987). Metabolites identified in carrots 117 days after treatment were 3,4-dichlorophenylurea, 3-(3,4-dichlorophenyl)-1-methylurea and 3,4-dichloroaniline. About 87% of the linuron remained unreacted (Loekke, 1974).Photolytic. When an aqueous solution of linuron was exposed to summer sunlight for 2 months, 3-(3-chloro-4-hydroxyphenyl)-1-methoxy-1-methylurea, 3,4-dichlorophenylurea and 3-(3,4-dichlorophenyl)-1-methylurea formed at yields of 13, 10 and 2%, re

Shipping

UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Toxicity evaluation

As a reproductive and developmental toxicant, linuron works via androgen receptor antagonist activity; that is, it competes with testosterone for binding to the androgen receptor. In mouse tissues, linuron competitively blocked transcription through androgen receptor induced by dihydrotestosterone in a concentration-dependent manner.

Incompatibilities

Amides are incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides. Similar organic amides react with azo and diazo compounds, releasing toxic gases. Contact with reducing agents can release flammable gases. Amides are very weak bases but they can react as acids, forming salts. Mixing amides with dehydrating agents such as such as phosphorus pentoxide or thionyl chloride generates the corresponding nitrile

Waste Disposal

Incinerate in a unit operating at 850C equipped with off-gas scrubbing equipment. 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

InChI:InChI=1/C9H10Cl2N2O2/c1-13(15-2)9(14)12-6-3-4-7(10)8(11)5-6/h3-5H,1-2H3,(H,12,14)

Upstream product

• 17356-61-5 1-(3,4-dichlorophenyl)-3-methoxyurea 
• 77-78-1 dimethyl sulfate 
• 31225-17-9 1-(3,4-dichlorophenyl)-3-hydroxyurea 
• 102-36-3 3,4-dichlorophenylisocyanate 

Downstream Products

• 74-89-5 methylamine 

Relevant academic research and scientific papers

NOXIOUS ARTHROPOD CONTROL AGENT CONTAINING AMIDE COMPOUND

An object of the present invention is to provide a compound having the controlling activity on a noxious arthropod, and a noxious arthropod controlling agent containing an amide compound of formula (I): wherein X represents a nitrogen atom or a CH group, p represents 0 or 1, A represents a tetrahydrofuranyl group or the like, R1, R2, R3, R4, R5, R6 and R7 represent a hydrogen atom or the like, n represents 1 or 2, Y represents an oxygen atom or the like, m represents any integer of 0 to 7, and Q represents a C1-8 chain hydrocarbon group optionally having a phenyl group or the like, has the excellent noxious arthropod controlling effect.

USE OF GLYCEROL ETHERS AS ACTIVATORS OF THE BIOLOGICAL EFFECTS OF A HERBICIDE, FUNGICIDE OR INSECTICIDE SUBSTANCE

The invention relates to the use of glycerol ethers as agents that activate the biological effects of at least one substance selected from a herbicide, fungicide or insecticide. The invention essentially relates to the use of glycerol ether as an agent that activates the biological effects of at least one substance selected from a herbicide, or fungicide or insecticide, said glycerol ether having formula (1), wherein R1 represents an alkyl group having between 1 and 18 carbon atoms and R2 represents a hydrogen atom or an alkyl group having between 1 and 18 carbon atoms, preferably a methyl or ethyl group. The invention also relates to a phytosanitary composition containing one such glycerol ether, as well as to a phytosanitary treatment method using said composition.

Halopyridyl triazolinone herbicides and herbicidal use thereof

Disclosed are herbicidal halopyridyl triazolinones, herbicidal compositions comprising the halopyridyl triazolinones, and herbicidal use of the compounds and compositions. Such compounds and compositions are useful as both preemergence and postemergence herbicides in a variety of crops.

Herbicidal composition for upland farming and weeding method

A herbicidal composition for upland farming which can control weeds that have been difficult to control, for example, cleavers, chickweed, birdseye speedwell and violet, said composition containing as active ingredients a 3-substituted phenylpyrazole derivative represented by the general formula (I): STR1 (wherein R is a hydrogen atom, a C1-6 alkyl group, a C3-6 cycloalkyl group, a C1-6 haloalkyl group, a C2-6 alkenyl group or a C2-6 alkynyl group, R1 is a C1-6 alkyl group, X1 and X2, which may be the same or different, are halogen atoms, and Y is an oxygen atom or a sulfur atom) and at least one compound selected from the group consisting of sulfonylurea derivatives, phenylurea derivatives and phenoxy fatty acid derivatives; and a weeding method using said composition.

Substituted pyridinesulfonamide compound or its salt, process for preparing the same, and herbicide containing the same

A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): STR1 wherein A is CH or N; when A is CH, R1 and R2 may be either each independently a member selected from the group consisting of unsubstituted or substituted alkyl groups, unsubstituted or substituted alkenyl groups, unsubstituted or substituted cycloalkyl groups, and unsubstituted or substituted phenyl groups; when A is N, R1 is an unsubstituted or substituted alkyl group, R2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.

Biocide composition and use

A stable liquid dispersion in an non-polar organic solvent containing an alkylsulphonylhalopyridine and a dispersing agent which is the reaction product of a hydroxyalkylcarboxylic acid and an amine or salt thereof. The alkylsulphonylhalopyridine may be 2,3,5,6-tetrachloro-4-(methylsulphenyl)pyridine and the hydroxycarboxylic acid may be poly(12-hydroxystearic acid) and the amine may be either dimethylamino propylamine or polyethyleneimine. The solvent may be white spirit or an ester or vegetable oil which is a plasticiser for PVC.

Substituted pyridinesulfonamide compounds or their salts, process for preparing the same, and herbicides containing the same

A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): wherein R1 is an unsubstituted or substituted alkyl group; R2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.

Agricultural sulfonamides

N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.

Composition for defoliating plants

New compositions for defoliating plants possessed of synergistic activity comprising (A) a compound of formula I STR1 in which R1 is hydrogen or C1 -C4 -alkyl, R2 is hydrogen, C1 -C4 -alkyl, C1 -C4 -alkoxy or C1 -C4 -alkylthio, R3 is hydrogen, C1 -C4 -alkyl, C1 -C4 -alkoxy, C1 -C4 -alkylthio or C3 -C8 -cycloalkyl, wherein R2 and R3 taken together with the nitrogen atom to which they are attached is a morpholino- piperidino- or pyrrolidino-group, X is oxygen or sulfur, Y can be the same or different and is hydrogen, halogen, C1 -C4 -alkyl, C1 -C4 -alkoxy, C1 -C4 -alkoxy-C1 -C2 -alkyl, C1 -C4 -alkylthio, trifluoromethyl or nitro, and n is the number 1, 2, 3, 4 or 5, in combination with (B) a defoliant for plants in a proportion of 1 to 99 parts by weight of component (A) to 99 to 1 parts by weight of component (B). As the defoliant there can be employed 1,2,3-thiadiazole-5-yl-urea derivatives, 1,2,3-thiadiazole-5-carboxylic acid derivatives, benzylaminopurine derivatives, 2,3-dihydro-5,6-dimethyl-1,4-dithiine-1,1,4,4-tetroxide, 1,1'-dimethyl-4,4'-bipyridilium-dichloride, sodium chlorate and S,S,S-tributylphosphortrithioate. The compositions of the invention are especially suitable for use in the defoliation of cotton plants.

5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides

5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides of the formula STR1 where R1 is hydrogen, a metal atom or an unsubstituted or substituted ammonium radical, R2 is a saturated or unsaturated straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical or 3 to 7 carbon atoms, a branched saturated or unsaturated aliphatic radical of 3 to 10 carbon atoms, a halogen-, alkoxy- or alkylmercapto-substituted aliphatic radical of 2 to 10 carbon atoms tetrahydrofuryl substituted methyl, a cycloalkoxy-substituted aliphatic radical of 4 to 10 carbon atoms, unsubstituted or halogen-substituted benzyl or phenyl, halophenyl, or alkylphenyl of a total of up to 10 carbon atoms, R3 is hydrogen, a straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical of 3 to 7 carbon atoms, a branched aliphatic radical of 3 to 10 carbon atoms, haloalkyl, or alkoxyalkyl of 2 to 10 carbon atoms and X is oxygen and may also be sulfur if R2 is unsubstituted or halogen-substituted benzyl, processes for their preparation, and herbicides containing the above compounds.