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Synonyms: E)-1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine (IUPAC)
CAS No.: 138261-41-3
EC No.:
Molecular Weight: 255.7
Molecular Formula: C9H10ClN5O2
Structural Formula: imidacloprid
Form: Colourless crystals, with a weak characteristic odour.
M.p.: 144 °C V.p. 4 × 10-7 mPa (20 °C); 9 × 10-7 mPa (25 °C)
S.g: 1.54 (23 °C)
Solubility: water 0.61 g/l (20 °C). In dichloromethane 67, isopropanol 2.3, toluene 0.69 (all in g/l, 20 °C); in n-hexane <0.1 g/l (ambient temperature).
Stability: Stable to hydrolysis at pH 5–11.


Imidacloprid is a systemic insecticide with translaminar activity and with contact and stomach action by binding to postsynaptic nicotinic receptors in the insect central nervous system. Easily taken up by the plant and further distributed acropetally, with good root-systemic action. Used to control sucking insects, including rice-, leaf- and planthoppers, aphids, thrips and whiteflies. Also effective against soil insects, termites and some species of biting insects, such as rice water weevil and Colorado beetle. Has no effect on nematodes and spider mites. Used as a seed dressing, as soil treatment and as foliar treatment in different crops. Also used to control fleas on dogs and cats.



Standard Packaging

Bottle, drum, bag.

Risks and Safety Information

Class 6.1, Toxic

Acute oral LD50(male and female rats) 450 mg/kg. Skin and eye Acute percutaneous LD50 (24h) (rats) >5000 mg/kg. Non-irritating to eyes and skin (rabbits). Not a skin sensitiser. Birds Acute oral LD50(Japanese quail) 31, Fish LC50 (96h for golden orfe) 237, Algae ErC50 (72h for Pseudokirchneriella subcapitata) >100 mg/l. Harmful to honey-bees when direct contact..

Warning Toxic

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