Chemical Identification
Common Name
Dinotefuran
中文通用名
呋虫胺
IUPAC
(EZ)-(RS)-1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine
CAS
N-methyl-N′-nitro-N″-[(tetrahydro-3-furanyl)methyl]guanidine
CAS No.
165252-70-0
Molecular Structure
Category
Activity
Insecticide.
Dinotefuran can be applied to foliage or to the soil and is active by contact and ingestion. It also has root-systemic activity. The products activity persists for up to several weeks after application.

Dinotefuran has demonstrated no cross-resistance to organophosphates, carbamates, pyrethroids and insect growth regulators. Mitsui recommends its use in both resistance management and integrated pest management systems. In tests against several strains of mosquito species, although it was generally less toxic than standards, dinotefuran was more effective against a carbamate-resistant strain of Culex quinquefasciatus than the susceptible strain (J Med Entomology, 2004).

Data from Mitsui indicate that dinotefuran provides superior control of stinkbugs, fruit moths, flea beetles and leaf miners compared with imidacloprid.

Field trials conducted on golf courses in Mississippi in 2000 with dinotefuran (code numbered YW-74G) demonstrated a comparable level of control of mole crickets (Scapteriscus spp) to the reference product, orthene.
CropUse
Crop uses:
apples, aubergines, brassicas, cabbages, celery, cole crops, cotton, cucumbers, curcubits, field crops, fruiting vegetables, fruit trees, grapevines, leafy vegetables, meat, milk ornamentals, parsley, peppers, potatoes, raisins, rice, sugar beet, swiss chard, tomatoes, turf, vegetable crops, vines, watermelons

100-200 g ai/ha

 

150-600 g ai/ha by soil application

 

112-224 g/380 L (Safari, foliar application)

 

680 g/380 L (Safari; soil drench)

 

Formulation
GR = Granule
PB = Plate bait
SC = Suspension concentrate (=flowable concentrate)
Premix
Pymetrozine+Dinotefuran
Dinotefuran+Chlorpyrifos
Thifluzamide+Dinotefuran
Spirotetramat+Dinotefuran
Abamectin+Dinotefuran
Lambda-cyhalothrin+Dinotefuran
Bifenthrin+Dinotefuran
Nitenpyram+Dinotefuran
Pyriproxyfen+Dinotefuran
Buprofezin+Dinotefuran
Dinotefuran+Thiamethoxam
Dinotefuran+Isoprocarb
Dinotefuran+Pyridaben
Physical Properties
Molecular weight:202.2.Physical form: White solid; odorless. Density:1.33; Melting point:94.5-101.5 °C; Partition coefficient(n-octanol and water):logP = -0.644 ( pH 7); pKa:No dissociation in range pH 1.4 to 12.3; Solubility:In purified water 54.3 .3 g/l (20 °C).
Toxicology
Oral:Acute oral LD50 for male rats 2804 mg/kg, female rats 2000 mg/kg, male mice 2450 mg/kg, female mice 2275 mg/kg. Percutaneous:Acute percutaneous LD50 for male and female rats >2000 mg/kg. Not a skin sensitiser (guinea pigs). ADI:( JMPR) 0.008 mg/kg b.w. [2000].?
Environmental Profile
Ecotoxicology:?
Birds:Acute oral LD50 for mallard ducks 1000, Japanese quail >2000 mg/kg.Daphnia:(48 h) 1000 ppm.Fish: LC50 (96 h) for carp >1000 ppm; (48 h) for rainbow trout >40 ppm.Other aquatic spp.: LC50 (48 h) for crayfish 5-10 ppm.
WATER SOLUBILITY: 39.8 g/l at 20°C.

Mallard duck

LD50 1,000 mg/kg

Japanese quail

LD50 >2,000 mg/kg

Rainbow trout [48 h]

LC50 >100 mg/L

Rainbow troutchronic

NOEC >/= 10 mg/L

Bluegill sunfish acute

LC50 >100 mg/L

Carp [96 h]

LC50 >100 mg/L

Daphnia magna acute

EC50 >1000 mg/L

Daphnia magna chronic

EC50 >100 mg/L

Sheeps head minnow acute

LC50 >109 mg/L

Mysid shrimp acute

LC50 = 0.79 mg/L

Oyster acute

EC50 >141 mg/L

Fate in aquatic systems:
Hydrolysis at 20C; dinotefuran is stable in water at pH 4, 7 and 9.
Aqueous photolysis; photolytic degradation in sterile buffer gave a DT50 of 1.7 days at Summer latitude 30N and 18.60 days at winter latitude 50N.

Fate in soil:
In aerobic laboratory soil metabolism studies on loamy sand soil, the DT50 value was 51.7 days.
In a 320 day aquatic water-sediment system, the DT50 value for dinotefuran in the aerobic water phase was 23-49 days and 45-128 days in the largely anaerobic sediment layer.
Field dissipation studies in sandy loam soils in the US gave DT50 values of 68.6 days in California (pH 8.8), 22.6 days in Georgia (pH 6.5) and 59.2 days (pH 6.6).

Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

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