Cyhalothrin

Agent Name
Cyhalothrin
CAS Number
68085-85-8
Formula
C23-H19-Cl-F3-N-O3
Major Category
Pesticides
Cyhalothrin formula graphical representation
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."
Restricted
Not registered as a pesticide for use in the US; [HSDB] Banned in the EU for use as pesticide for plant protection; [eChemPortal: ESIS]
Biomedical References

Exposure Assessment

Vapor Pressure
7.5E-09 mm Hg
Lethal Concentration
LC50 (rat) = 83 mg/m3/4h
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Pesticide, liquid, toxic, n.o.s."

Adverse Effects

Skin Sensitizer
Yes
Neurotoxin
Other CNS neurotoxin

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: