Cyhalothrin

Synonyms

(1alpha,3alpha(Z))-(+-)-Cyano-(3-phenoxyphenyl)methyl 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate; (RS)-alpha-Cyano-3-phenoxybenzyl (Z)-(1RS,3RS)-(2-chloro-3,3,3- trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate; (RS)-alpha-Cyano-3-phenoxybenzyl (Z)-(1RS,3RS)-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate; 3-(2-Chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid cyan(3-phenoxyphenyl)methyl ester; Cyhalothrine [ISO-French]; Grenade; ICI 146814; Matador; PP 563; Saber; Scimitar; [ChemIDplus] UN2902

Category

Pyrethrins/Pyrethroids

Description

Yellow-brown viscous liquid (technical product); [ICSC]; [HSDB] Colorless solid; [CAMEO]

Sources/Uses

Used as insecticide and acaricide; [Merck Index] Used in agriculture and for public and animal health; [ICSC]

Comments

Commercial product is 95% cis isomer; A synthetic pyrethroid; [Merck Index] A skin, eye, and respiratory tract irritant; May cause skin sensitization; "The substance may cause effects on the nerve terminals of the skin , resulting in subjective facial skin sensation characterized by tingling, burning or numb sensation." [ICSC] Caused weight loss in rats fed 250 mg/kg/day for 90 days; [HSDB] A moderate skin sensitizer in guinea-pig testing; [Reference #1] See "Pyrethrum."

Not registered as a pesticide for use in the US; [HSDB] Banned in the EU for use as pesticide for plant protection; [eChemPortal: ESIS]

Reference Link #1

Biomedical References

7.5E-09 mm Hg

LC50 (rat) = 83 mg/m3/4h

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Pesticide, liquid, toxic, n.o.s."

Yes

Other CNS neurotoxin

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)