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Cyphenothrin

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Cyphenothrin Basic information

Product Name:
Cyphenothrin
Synonyms:
  • 2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicacicyano(3-phe
  • 2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicacicyano(3-phenoxyphenyl)methylester
  • Cyano-3-Phenoxybenzyl2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate
  • Cyclopropanecarboxylicacid,2,2-dimethyl-3-(2-methyl-1-propenyl)-,cyano(3-phenoxyphenyl)methylester
  • CYPHENOTHRIN
  • D-CYPHENOTHRIN
  • D-TRANS-CYPHENOTHRIN
  • CYPHENOTHRIN MIXTURE OF CIS AND TRANS IS
CAS:
39515-40-7
MF:
C24H25NO3
MW:
375.46
EINECS:
254-484-5
Product Categories:
  • Alpha sort
  • C
  • CAlphabetic
  • CO - CZPesticides
  • Insecticides
  • Pesticides&Metabolites
  • Pyrethroids
Mol File:
39515-40-7.mol
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Cyphenothrin Chemical Properties

Melting point:
25°C
Boiling point:
504.24°C (rough estimate)
Density 
d2525 1.083
vapor pressure 
1.2×10-4pa 20°C
refractive index 
1.5614 (estimate)
solubility 
Chloroform, DMSO (Slightly), Methanol (Slightly)
Water Solubility 
0.001 mg l-1 (23 °C)
Merck 
13,2797
Stability:
Light Sensitive
CAS DataBase Reference
39515-40-7(CAS DataBase Reference)
EPA Substance Registry System
Cyphenothrin (39515-40-7)
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Safety Information

Hazard Codes 
Xn;N,N,Xn
Risk Statements 
22-50/53
Safety Statements 
60-61
RIDADR 
UN 2810
WGK Germany 
3
RTECS 
GZ1453500
HS Code 
29269090
Hazardous Substances Data
39515-40-7(Hazardous Substances Data)
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Cyphenothrin Usage And Synthesis

Chemical Properties

Thick, yellow liquid.

Uses

Cyphenothrin controls insects in household, public health and industrial situations. It is also used to control insects which attack wood and fabrics.

Uses

Insecticide.

Definition

ChEBI: Cyphenothrin is a cyclopropanecarboxylate ester. It has a role as a pyrethroid ester insecticide and an agrochemical. It is functionally related to a chrysanthemic acid.

Potential Exposure

Pyrethroid insecticide. Those involved in the manufacture and application of this agricultural chemical.

Metabolic pathway

Cyphenothrin is the name given to the α-RS,1RS-cis-trans isomer mixture (racemic). The product now used is cyphenothrin which is 95% 1R and 75% trans. It has no field use because the chrysanthemate moiety is very sensitive to photodegradation. A study in rodents has been reported. Cyphenothrin is degraded mainly by photo-oxidation and by hydrolysis and oxidation in plants and animals.

Shipping

UN3349 Pyrethroid pesticide, solid toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous material. UN3352 Pyrethroid pesticide, liquid toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN3082 Environmentally hazardous substances, liquid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required

Degradation

Cyphenothrin is stable under normal storage conditions but it is labile to base, being hydrolysed to trans-2,2-dimethyl-3-(2-methylprop-1-enyl)- cyclopropanecarboxylic acid (2,trans-chrysanthemic acid) and 3-phenoxybenzaldehyde (3, 3PBAl) and cyanide ion (Scheme 1). It is sensitive to light (see phenothrin for expected products).

Incompatibilities

May react violently with strong oxidi- zers, bromine, 90% hydrogen peroxide, phosphorus trichloride, silver powders, or dust. Incompatible with silver compounds. Mixture with some silver compounds forms explosive salts of silver oxalate

Waste Disposal

Incineration would be an effective disposal procedure where permitted. If an efficient incinerator is not available, the product should be mixed with large amounts of combustible material and contact with the smoke should be avoided. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Noncombustible con- tainers should be crushed and buried under more than 40 cm of soil .

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