PYRETHRINS manufacturers and suppliers

Pyrethrins suppliers

Properties

Density: 0.84-0.86 g/cm3

vapor pressure: 2.7×10^-3 (pyrethrin I) and 5.3×10^-5 (pyrethrin II) Pa

refractive index: n20/D 1.45

Flash point:: 75 °C

storage temp.: 2-8°C

solubility: Chloroform: Slightly Soluble; Methanol: Slightly Soluble

Water Solubility: 0.2 (pyrethrin I) and 9 (pyrethrin II) mg l^-1 (ambient temp.)

Stability:: Light Sensitive

InChIKey: VXSIXFKKSNGRRO-YWUDCVDHSA-N

Safety Information

Symbol(GHS): GHS06,GHS09

Signal word: Danger

Hazard statements: H301+H331-H312-H410

Precautionary statements: P261-P273-P280-P301+P310-P302+P352+P312-P304+P340+P311

Hazard Codes: Xn,N

Risk Statements: 20/21/22-50/53

Safety Statements: 13-60-61

RIDADR: UN 2810 6.1/PG 3

WGK Germany: 3

RTECS: UR4200000

HazardClass: 6.1(b)

PackingGroup: III

Toxicity: The six insecticidal constituents of the extract of the pyrethrum flowers Pyrethrum (Chrysanthemum cinerariaefolium). Pyrethrins I and II are most prominent, existing in the ratio 71:21:7 for pyrethrin (I and II), cinerin (I and II), jasmolin (I and II). Pyrethrins are potent, nonsystemic, contact insec_x0002_ticides, causing rapid paralysis or knockdown and death at a later stage in a variety of insects. They exhibit low vertebrate toxicity with an acute oral LD50 in rats of 1.2 g/kg. The mechanism of action involves modification of nerve membrane Na1 channels. Opening and closing of the Na1 channel is slowed, resulting in increased Na1 permeability and depolarization leading to hyperexcitability. Symptoms in humans include gastrointestinal irritation, nausea, vomiting, diarrhea, numbness of tongue and lips, syncope, hyperexcitability, incoordination, convulsions, muscular paralysis, collapse and death due to respiratory paralysis. Treatment involves gastric lavage, emetics, cathartics, demulcents, artificial respiration if necessary and short-acting barbiturates for convulsions.

IDLA: 5,000 mg/m3

Use

Pyrethrins/pyrethrum are natural insecticides produced by certain chrysanthemum species of plants. in contrast, permethrin (‘per-meth-rin’) is a synthetic, man-made insecticide, whose chemical structure is based on natural pyrethrum. pyrethrum was first recognised as having insecticidal properties around 1800 in asia and was used to kill ticks and various insects such as fleas and mosquitoes. six individual chemicals have active insecticidal properties in the pyrethrum extract, and these compounds are called pyrethrins. pyrethrum are viscous, tan-coloured brown resins, liquids, or solids which inactivate readily in air. pyrethrum are soluble in organic solvents such as alcohol, kerosene, nitromethane, petroleum ether, carbon tetrachloride, and ethylene dichloride. a quick acting liquid insecticide especially suited for control of insect pests of vegetables, ornamentals, and exotic crops. the piperonyl butoxide ingredient is used to enhance the activity of the permethrin (synergist). pyrethrum has been used effectively to control insects for decades and is nonpersistent, decomposing rapidly in the environment.

You can find Pyrethrins suppliers, manufacturers, and distributors from countries such as CHINA, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.