chlorpyrifos

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Chemical name: O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)phos-phorothioate

Structural formula:

Molecular formula: C₉H₁₁C_l3NO₃PS

Molecular weight: 350.5

Physical and chemical properties
Appearance: Technical chlorpyrifos is white crystalline solid with a mild sulfur odor;
Stability: Wide stability at room temperature;
Density: 1.398(43.5¡ãC);
Melting Point: 41.5~43.5¡ãC;
Vapour Pressure: 2.5mPa(25¡ãC);
Solubility: 1.2mg/l in water, readily soluble in most organic solvents.

Toxicity
Chlorpyrifos is moderate toxic to animals. Acute oral LD₅₀ for rats 163mg/kg, acute dermal LD₅₀ for rats>2g/kg; Slight irritation to eye, serious to skin. Subacute oral non-effect level for rats 0.03mg/kg, chronic oral non-effect level 0.1mg/kg. Chronic oral non-effect level for dog 0.03mg/kg. No carcinogenic, mutagenic and teratogenic effects at experimental dosage. Maximum allowed concentration0.2mg/m³ (TLV) in indoor air. High toxic to fish and aquatic organisms, LC₅₀ for bulltrout 15mg/l (96 h, 72¡ãC). Toxic to bees. Acute oral LD₅₀ of 40.7% chlorpyrifos EC for rats 590mg/kg, acute dermal for rabbits LD₅₀ 2330mg/kg, irritation to skin and eyes. Acute oral of 14% G for rats LD₅₀>2g/kg, acute dermal for rats LD₅₀>2g/kg, acute inhale LC₅₀>0.007µg/L(7 h), irritation to eyes and skin.

Also call as: chlorpyrifos, dowco179; ENT27311; dursban, empire, eradex, lorsban, paqeant, piridane, scout, stipend

Quality :

Mode of action: Thiophosphate insecticide; Contact, stomach, and respiratory action. Non persistent on leaves, persistent in soil, high efficiency for the control of underground pests. At the recommended dosage, no phytotoxicity for most crop, but sensitive to tobacco.

Specification: ¡Ý95%, 98%

Packing: 45kg plastic bucket or according to clients demands.

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