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Lambda-Cyhalothrin

Identification

Synonyms: 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl-cyano (3-phenoxyphenyl)methyl cyclopropanecarboxylate [IUPAC]
CAS No.: 91465-08-6
EC No.: 415-130-7
Molecular Weight: 449.85
Molecular Formula: C23H19ClF3NO3
Structural Formula:
Form Colourless solid; (tech. is a dark brown/green solidified melt).
M.p. 49.2 °C; (tech., 47.5–48.5 °C)
B.p. Does not boil at atmospheric pressure

F.p. 83 °C (tech.) (Pensky-Martens closed cup)
V.p. 2 × 10-4 mPa (20 °C, est.); 2 × 10-1 mPa (60 °C, interpolated)
S.g.: 1.33 g/ml (25 °C)
Solubility: In water 0.005 mg/l (pH 6.5, 20 °C). Acetone, methanol, toluene, hexane, ethyl acetate >500 g/l.
Stable to light. Stable on storage for more than 6 months at 15–25 °C. pKa >9 (hydrolysis prevents measurement)

Application

Lamba-cypermethrin acts on the nervous system of insects, and disturbs the function of neurons by interaction with the sodium channel. Mode of action Non-systemic insecticide with contact and stomach action, and repellent properties. Gives rapid knockdown and long residual activity. Used to control a wide spectrum of insect pests, e.g. aphids, Colorado beetles, thrips, lepidopteran larvae, coleopteran larvae and adults, etc., in cereals, hops, ornamentals, potatoes, vegetables, cotton, and other crops. Provides good control of insect-borne plant viruses. Also used for control of insect pests in public health.

Specification*

97%TC
100g/l WP
50g/l EC, EW
60g/l EC
25g/l EC
ULV is also available

Standard Packaging

200L drum;
50L drum;
200ml, 500ml, 1000ml Co-Ex bottle

retail packaging of lambda-cyhalothrin

Risks and Safety Information

Lamba-cyhalothrin is regulated by UN as hazardous substance
T Toxic (for technical grade) N Dangerous for the environment
UN 2811 Class 6.1 PG: II
Acute oral LD50 (male rats) 79; (female) rats 56mg/kg. Skin and eye Acute percutaneous LD50(rats) 632–696 mg/kg. Mild eye irritant; non-irritant to skin (rabbits). Not a skin sensitiser (guinea pigs). Birds Acute oral LD50(mallard ducks) >3950mg/kg. Fish LC50 (96h for bluegill sunfish) 0.21, Algae ErC50 (96h) for Selenastrum capricornutum >1000μg/l.
For more information, please see MSDS.

Warning Toxic

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