Common name: imiprothrin

IUPAC name: A mixture containing 20% of 2,5-dioxo-3-prop-2-ynylimidazolidin-1-ylmethyl (1R,3S)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate and 80% of 2,5-dioxo-3-prop-2-ynylimidazolidin-1-ylmethyl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate

Chemical Abstracts name: [2,5-dioxo-3-(2-propynyl)-1-imidazolidinyl]methyl 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate

CAS RN: [72963-72-5]

 

Mol. wt.: 318.4; M.f.: C17H22N2O4; Form: Viscous liquid. V.p.: 1.8x10-3 mPa (25 °C). KOW: logP = 2.9 (25 °C); Henry: 6.33x10-6 Pa m3 mol-1 (calc.) S.g./density: 1.1 (20 °C). Solubility: In water 93.5 mg/l (25 °C). F.p.: 141 °C (closed cup). Other properties: Viscosity 60 cPs at 6 rpm and 12 rpm.

 

Uses: Household insecticide giving rapid knockdown against cockroaches and other crawling insects.

Formulation types: AE.

Compatibility: Incompatible with alkaline compounds.

 

Oral: Acute oral LD50 for male rats 1800, female rats 900 mg/kg.

Skin and eye: Acute percutaneous LD50 for male and female rats >2000 mg/kg. Non-irritating to skin and eyes (rabbits); not a skin sensitiser (guinea pigs).

Inhalation: LC50 (4 h) for male and female rats >1200 mg/m3.

NOEL: (13 w) for rats 100 mg/kg diet.

Toxicity class: EPA (formulation) III

 

Birds: Dietary LC50 (8 d) for mallard ducks and bobwhite quail >5620 ppm.

Fish: LC50 (96 h) for rainbow trout 0.038, bluegill sunfish 0.07 ppm.

Daphnia: EC50 (48 h) 0.051 ppm.