Tetramethrin 95%TC

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Tetramethrin 95%TC
Posting date : Oct 12, 2006
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Common Name: Tetramethrin Chemical Name: (1,3,4,5,6,7-Hexahydro-1,3-dioxo-2H-isoindol-2-yl)methyl 2,2-dimethyl-3- (2-methyl-1-propenyl) CAS No.: 7696-12-0 HS Code: 38081090 Molecular Formula: C19H25NO4 Molecular Weight: 331.41 Physical Properties: Technical grade tetramethrin is a colourless solid with a melting point of 65-80°C. The specific gravity is 1.11 at 20 °C, and the vapour pressure is 0.946 mPa (7.1 x 10-6 mmHg) at 30 °C. It is sparingly soluble in water (4.6 mg/litre at 30 °C) but soluble in organic sol-vents such as hexane, methanol, and xylene. It is stable to heat but unstable to light and air. The [1R,cis/trans] isomer of tetramethrin is a yellow viscous liquid but otherwise has physical and chemical properties similar to tetramethrin. Application: Synthetic pyrethroids are neuropoisons acting on the axons in the peripheral and central nervous systems by interacting with sodium channels in mammals and/or insects. A single dose produces toxic signs in mam-mals, such as tremors, hyperexcitability, alivation, choreoathetosis, and paralysis.The signs disappear fairly rapidly, and the animals recover, generally within a week. At near-lethal dose levels, synthetic pyrethroids cause transient changes in the nervous system, such as axonal swelling and/or breaks and myelin degeneration in sciatic nerves. They are not considered to cause delayed neurotoxicity of the kind induced by some organophosphorus compounds. Technical Purity: 90%TC Formulation Type: 20%EC, 50%EC

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