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CAS No. 52645-53-1 |
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Product Name Permethrin
CAS No. 52645-53-1
Categories Insecticides
NOMENCLATURE
Common name: permethrin; perm¨¦thrine
IUPAC name: 3-phenoxybenzyl (1RS,3RS;1RS,3SR)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
Roth: 3-phenoxybenzyl (1RS)-cis-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
Chemical Abstracts name: (3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate
CAS RN: [52645-53-1], (formerly [57608-04-5] and [63364-00-1])
PHYSICAL CHEMISTRY
Mol. wt.: 391.3,
M.f.: C21H20Cl2O3;
Form: Tech. is a yellow-brown to brown liquid, which sometimes tends to crystallise partly at room temperature.
M.p.: 34-35C; cis- isomers 63-65C; trans- 44-47C.
B.p.: 200C/0.1 mmHg; >290C/760 mmHg.
V.p.: cis- 0.0025 ***; trans- 0.0015 *** (both 20C).
KOW: logP = 6.1 (20C).
S.g./density: 1.29 (20C).
Solubility: In water 6x10-3 mg/l (pH 7, 20C). In xylene, hexane >1000, methanol 258 (all in g/kg, 25C).
Stability: Stable to heat (2 y at 50C), more stable in acidic than alkaline media with optimum stability c. pH 4; DT50 50 d (pH 9), stable (pH 5, 7) (all 25C). Some photochemical degradation observed in laboratory studies, but field data indicate this does not adversely affect biological performance.
F.p. >100C ('Perigen').
APPLICATIONS
Mode of action: Non-systemic insecticide with contact and stomach action, having a slight repellent effect.
Uses: A contact insecticide effective against a broad range of pests. It controls leaf- and fruit-eating Lepidoptera and Coleoptera in cotton, at 100-150 g a.i./ha, in fruit, at 25-50 g/ha, in tobacco, vines and other crops, at 50-200 g/ha, and in vegetables, at 40-70 g/ha. It has good residual activity on treated plants. It is effective against a wide range of animal ectoparasites, provides >60 d residual control of biting flies in animal housing, at 200 mg a.i. (as EC)/m2 wall or 30 mg a.i. (as WP)/m2 wall, and is effective as a wool preservative, at 200 mg/kg wool. It provides >120 d control of Blattode |
| Company: |
Shanghai Kima Chemical Co., Ltd
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| Contact: |
Ms. sandy grance |
| Address: |
Rm 2219, 22F, Zhongyi Mansion, No. 2, Lane 1040, Caoyang Road, Shanghai, China |
| Postcode: |
200063 |
| Tel: |
0086-21-52661975 |
| Fax: |
0086-21-52661949 |
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