ChemicalBook >  Product Catalog >  Chemical pesticides >  Insecticides >  Pyrethroid insecticides >  BETA-CYPERMETHRIN

BETA-CYPERMETHRIN

Basic information Safety Related Supplier

BETA-CYPERMETHRIN Basic information

Product Name:
BETA-CYPERMETHRIN
CAS:
65731-84-2
MF:
C22H19Cl2NO3
MW:
416.3
EINECS:
265-898-0
Mol File:
65731-84-2.mol
More
Less

BETA-CYPERMETHRIN Chemical Properties

Melting point:
53-55 °C
Boiling point:
511.3±50.0 °C(Predicted)
Density 
1.329±0.06 g/cm3(Predicted)
vapor pressure 
1.8×10-7 Pa (20 °C)
Water Solubility 
0.09 mg l-1(25 °C)
CAS DataBase Reference
65731-84-2
EPA Substance Registry System
Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (S)-cyano(3-phenoxyphenyl)methyl ester, (1R,3R)- (65731-84-2)
More
Less

BETA-CYPERMETHRIN Usage And Synthesis

Uses

Beta-cypermethrin is used to control a wide range of insects, especially Lepidoptera and Coleoptera, in alfalfa, cotton, cereals, fruit, vines, vegetables, beans, beets, tobacco, oilseed rape and other crops. It is also used for insect control in public health and for ectoparasite control on animals.

Metabolic pathway

Beta-cypermethrin is composed of two of the four cis-cypermethrin isomers (1RcisaS and 1ScisaR isomers) [i.e. alpha-cypermethrin] and two of the four trans-cypermethrin isomers (1RtransaS and 1StransaR) [i.e. thetacypermethrin]. The fate of these four isomers (separately) has been reported for soils. Metabolite analysis was conducted in enough detail to indicate that the fate of the components was very similar to their fate when presented to biological systems as part of cypermethrin. Thus reference can be made to the cypermethrin entry for details. The structure and Scheme numbering used below refers to the cypermethrin entry.

Degradation

Beta-cypermethrin is stable as a solid but it is epimerised in weak base solution and readily hydrolysed at higher pH. Its half-lives at pH values 3, 7 and 9 (25 °C) were 50,40 and 15 days (PM). By analogy with cypermethrin, the rate-determining step in dilute solution is nucleophilic attack by OH-. Half-lives of cis-cypermethrin in river water and sea water at 25 °C were 21 and 24 days, respectively; the trans-isomer would be expected to be more rapidly degraded. Major products were 3-(2,2- dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid (2, DCVA), 3- phenoxybenzaldehyde (9, 3PBAl) and a-carbamoyl-3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate( the amide 3); minor products were the a-carboxy analogue of 3 (4) and 3- phenoxybenzoic acid (10,3PBA) (see cypermethrin, Schemes la and lb).
Photodecomposition would be expected to be similar to that of cypermethrin.

More
Less

BETA-CYPERMETHRIN(65731-84-2)Related Product Information

More
Less

BETA-CYPERMETHRINSupplierMore

Wuhan plov Biotechnology Co., Ltd Gold
Tel:
17612776928
Email:
17612776928@qq.com
BEST-REAGENT
Tel:
18981987031 400-1166-196
Email:
cdhxsj@163.com;1955352637@qq.com;cdhxsj@163.com
Hangzhou Yuhao Chemical Technology Co., Ltd
Tel:
0571-82693216
Email:
info@yuhaochemical.com
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel:
4008-755-333 028-85911938-
Email:
800078821@qq.com
Cheng Du Micxy Chemical Co.,Ltd
Tel:
18048500443
Email:
sales@micxy.com;
Basic information Safety Related Supplier