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Permethrin

Also known as: (3-Phenoxyphenyl)methyl (±)-cis,trans-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate, (3-Phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate, 3-Phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, m-Phenoxybenzyl (±)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, Ambush, Pounce, NIX, Acticin, Corsair, Dragnet, Ectiban, Imperator, Kestrel, Lyclear, Outflank, Permanone, Permasect, Stomoxin, Talcord

Permethrin (CAS 52645-53-1) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C21H20Cl2O3 and a molecular weight of 391.288 g/mol. Key properties include a melting point of 34-35°C, a boiling point of 465.9±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 159.4±27.7 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
52645-53-1
Jingsj CID
J-14348-0
Molecular Formula
C21H20Cl2O3
Molecular Weight
391.288 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Melting Point34-35°C
Boiling Point465.9±45.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point159.4±27.7 °C
Exact Mass390.078949
PSA35.53000
LogP7.15
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.616
Additional Propertyinsoluble

GHS Safety & Compliance

Flammable / Irritant / Environmental HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H411 — Toxic to aquatic life with long lasting effects

Activity & Biological Data

Additional Information[1]. Xiao X, et al. Exposure to permethrin promotes high fat diet-induced weight gain and insulin resistance in male C57BL/6J mice. Food Chem Toxicol. 2018 Jan;111:405-416. [2]. Smith LB, et al. CYP-mediated permethrin resistance in Aedes aegypti and evidence for trans-regulation. PLoS Negl Trop Dis. 2018 Nov 19;12(11):e0006933.

Customs & Trade Information

HS Code2916209022

Frequently Asked Questions

What is the CAS number of Permethrin?

The CAS number of Permethrin is 52645-53-1.

What are the molecular formula and molecular weight of Permethrin?

Permethrin has molecular formula C21H20Cl2O3 and molecular weight 391.288 g/mol.

Is Permethrin hazardous?

Permethrin has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of Permethrin?

For Permethrin, Upstream Products: Tetrabutylphosphonium chloride, (3-Phenoxyphenyl)methanol, 3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarbonyl chloride; Downstream Products: Permethric acid, (3-Phenoxyphenyl)methanol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Permethrin (CAS 52645-53-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14348-0 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.