D-Tetramethrin

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Origin:

China

D-Tetramethrin

IUPAC name : cyclohex-1-ene-1, 2-dicarboximidomethyl ( 1R, 3R; 1R, 3S) -2, 2-dimethyl-3-( 2-methylprop-1-enyl) cyclopropanecarboxylate
Al t: cyclohex-1-ene-1, 2-dicarboximidomethyl ( + ) -cis-trans-chrysanthemate
Roth: cyclohex-1-ene-1, 2-dicarboximidomethyl ( 1R) -cis-trans-2, 2-dimethyl-3-( 2-methylprop-1-enyl) cyclopropanecarboxylate
3 , 4, 5, 6-tetrahydrophthalimidomethyl ( + ) -cis-trans-chrysanthemate
Chemical Abstracts name: ( 1, 3, 4, 5, 6, 7-hexahydro-1, 3-dioxo-2H-isoindol-2-yl) methyl ( 1R) -cis-trans-2, 2-dimethyl-3-( 2-methyl-1-propenyl) cyclopropanecarboxylate
O ther names: d-tetramethrin
CAS RN: [ 7696-12-0] mixed stereoisomers; [ 51348-90-4] ( 1R) -cis- isomer; [ 1166-46-7] ( 1R) -trans- isomer
EEC no.: 231-711-6

PHYSICAL CHEMISTRY
Composition: The name d-tetramethrin is used for a ( 1R) - rich product containing cis-trans- isomers in the ratio 20: 80. Mol. wt.: 331.4; M.f.: C19H25NO4 Form: d-Tetramethrin is a viscous, yellow or brown liquid. V.p.: 3.2x10-4 mPa ( 20 ° C) . KOW: logP = 4.35; S.g./ density: 1.11 ( 25 º C) . Solubility: In water 2-4 mg/ l ( 23 º C) . In hexane, methanol, xylene > 500 g/ kg.

APPLICATIONS
Mode of action: Contact insecticide with knockdown action.
Uses: Used on Blattodea, Culicidae, Muscidae and other pests of public health. Often mixed with other insecticides and synergists.
Formulation types: AE; EC; EO; Concentrates for the preparation of oil-based and water-based pressurised formulations.

MAMMALIAN TOXICOLOGY
Oral: Acute oral LD50 for rats > 5000 mg/ kg.
Skin and eye: Acute percutaneous LD50 for rats > 5000 mg/ kg.
Inhalation: LC50 ( 3 h) for rats > 1180 mg/ m3.

ECOTOXICOLOGY
Fish: LC50 ( 96 h) for rainbow trout 0.010 mg/ l.

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