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丁醚脲 80060-09-9 95% TC, 90% TC, 50% SC

Diafenthiuron 丁醚脲

Introduction: Diafenthiuron is an organic compound which is used as a systemic, broad spectrum insecticide and acaricide in the form of dispersible powder and mothballs. Its solubility in water is low and it is highly volatile, owing to which it is used to control a wide spectrum of insects in warehouses, farmlands and in integrated pest management systems. Diafenthiuron vapors are toxic to insects, mildews and molds and it is used to control insect infestation in crops. It is used as a fumigant for clothes and ant control and as a rodenticide at high concentrations.

Common name: Diafenthiuron

Another name: Polo; Pegasus (pesticide); AC1MHXFE; SCHEMBL27926; 22W5MDB01G; etc.

Chemical name: 1-tert-butyl-3-(2,6-diisopropyl-4-phenoxyphenyl)thiourea

Empirical formula: C23H32N2OS

Structural formula:

Mol. Weight: 384.58 g/mol

CAS No.: 80060-09-9

Specifications

Leading Diafenthiuron supplier

Diafenthiuron 95% TC

Diafenthiuron 90% TC

Diafenthiuron 50% WP

Diafenthiuron 50% SC

Diafenthiuron 50% EC

Diafenthiuron 25% EC

Packing:

BULK PACKING                                                     

Powder: 25kg/Bag, 25kg/Drum, 50kg/Drum etc.                    

Liquid: 200L/Drum, 20L/Drum, 10L/Drum etc.

SMALL PACKING

Powder: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc. 

Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc.

Customerized packing label

Diafenthiuron FAO standard

Professional registration

HAZARDS IDENTIFICATION

Hazard statement(s)

H331: Toxic if inhaled.

H332: Harmful if inhaled.

H373: Causes damage to organs through prolonged or repeated exposure. 

H400: Very toxic to aquatic life.

H410: Very toxic to aquatic life with long lasting effects.

Precautionary statement(s)

P260: Do not breathe dust/fume/gas/mist/vapors/spray.

P261: Avoid breathing dust/fume/gas/mist/vapors/spray.

P271: Use only outdoors or in a well-ventilated area.

P273: Avoid release to the environment.

P284: [In case of inadequate ventilation] Wear respiratory protection.

P304+P312: IF INHALED: call a POISON CENTER/doctor/... IF you feel unwell.

P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.

P311: Call a POISON CENTER or doctor/...

P312: Call a POISON CENTER or doctor/... if you feel unwell.

P314: Get medical advice/attention if you feel unwell.

P321: Specific treatment (see ... on this label).

P391: Collect spillage.

P403 + P233: Store in a well-ventilated place. Keep container tightly closed.

P405: Store locked up.

P501: Dispose of contents/container to.

Supplemental Hazard Statements: none.

MAMMALIAN TOXICOLOGY

Acute toxicity: 1) Acute oral LD50 for rats is 2068 mg/kg. 2) Acute dermal LD50 for rats is >2000 mg/kg. 3) Acute inhalation toxicity LC50 (4 h) for rats is 0.558 mg/l. 4) Skin irritation: Non-irritating to skin (rabbits). 5) Eye irritation: Non-irritating to eyes (rabbits). 6) Skin sensitization for guinea pig: Not a skin sensitiser. 

NOEL (90 d) for rats 4 mg/kg b.w. daily, dogs 1.5 mg/kg b.w. daily.

ADI 0.003 mg/kg b.w.

Classification:

WHO Classification: III (Slightly hazardous)

EC Risk Classification: T - Toxic: R23; Xn - Harmful: R48/21/22; N - Dangerous for the environment: R50, R53.

US EPA Classification (formulation): No consensus across products or no products available.

ECOTOXICOLOGY

Effect on birds: Acute oral LD50 for Mallard is 1500 mg/kg. Effect on fish: Acute LC50 (96 h) for Rainbow trout is 0.0007 mg/l. Effects on aquatic invertebrates: Acute EC50 (48 h) for Daphnia magna is >0.5 mg/l. Effects on bees: Contact acute (48 h) LD50 is 1.5 μg/bee. Effects on earthworms: Acute 14 day LC50 is 1000 mg/kg.

ENVIRONMENTAL FATE

Animals Study of the absorption, distribution and excretion in rats demonstrated that the major portion of the dose was excreted with the faeces. The compound is degraded to yield its corresponding carbodiimide, which, in turn, reacts with nucleophiles like water and fatty acids to form urea and fatty acid derivatives. Plants In plants, diafenthiuron shows a complex metabolism pattern in all crops investigated, i.e. cotton, tomatoes and apples. Uptake of residue activity by plants from soil is low. Soil/Environment Diafenthiuron and its main metabolites show a strong sorptivity to soil particles. Degradation in soils proceeds rapidly: DT50 <1 h to 1.4 d.   

Usage: Diafenthiuron was developed by Ciba-Geigy AG (now Syngenta AG). Diafenthiuron is used as an insect repellant in cotton, cherries, apricots, plums, nectarines and other fruits and vegetables. Diafenthiuron can also reduce soil diseases, potato weevils, root aphids, peach tree borers, and wire worms. It is applied at the base of trees and since it is a systemic chemical it is absorbed by the plants and cannot be washed off. 

Application: Biochemistry Converted by light, or in vivo, to the corresponding carbodiimide, which is an inhibitor of mitochondrial respiration. Mode of action Insecticide and acaricide which kills larvae, nymphs and adults by contact and/or stomach action; also shows some ovicidal action. Uses Insecticide and acaricide effective against phytophagous mites (Tetranychidae, Tarsonemidae), Aleyrodidae, Aphididae and Jassidae on cotton, various field and fruit crops, ornamentals and vegetables. Also controls some leaf-feeding pests in cole crops (Plutella xylostella), soya beans (Anticarsia gemmatalis) and cotton (Alabama argillacea). Applied at 300-500 g/ha. Is safe on adults of all beneficial groups (Anthocoridae, Coccinellidae, Miridae) and on adults and immature stages of predatory mites (Amblyseius andersoni, Typhlodromus pyri), spiders (Erigonidae, Lycosidae), and Chrysopa carnea. Non-selective to immature stages of Heteroptera (Anthocoridae, Miridae). Compatible with the biological control of Aleyrodidae and mites in glasshouses. 

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