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Insecticides and acaricides

Permethrin

Also known as Pounce, Permethrine, Permetrina

CAS 52645-53-1Formula C21H20Cl2O3Molar mass 391.29 g/molEC 258-067-9
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 165 suppliers listed Drug substance
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Permethrin chemical structure, C21H20Cl2O3, CAS 52645-53-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless crystals to a viscous liquid, Color, white to pale yellow
Melting point
<20
Boiling point
>290
Density
Relative density (water = 1): 1.2
Solubility
In water, 0.0111 mg/L at 20 °C, pH 7.0-9.3 (OECD Method 105)
HS code
291620
Category
Insecticides and acaricides
UN number
UN 3077
Illustrative photo, colourless crystals in an open fibre drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Permethrin?

Plain description, key identifiers and synonyms

Permethrin is a cyclopropanecarboxylate ester in which the esterifying alcohol is 3-phenoxybenzyl alcohol and the cyclopropane ring is substituted with a 2,2-dichlorovinyl group and with gem-dimethyl groups. It has a role as an agrochemical, an ectoparasiticide, a pyrethroid ester insecticide, a pyrethroid ester acaricide and a scabicide. It is a cyclopropanecarboxylate ester and a member of cyclopropanes. It is functionally related to a 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate
CAS number
52645-53-1 CAS number cross-checkedOther or deprecated CAS: 52341-32-9, 52341-33-0, 93389-07-2
EC number
258-067-9
Molecular formula
C21H20Cl2O3
UNII
509F88P9SZ
MDL number
MFCD00041809
InChIKey
RLLPVAHGXHCWKJ-UHFFFAOYSA-N
InChI
InChI=1S/C21H20Cl2O3/c1-21(2)17(12-18(22)23)19(21)20(24)25-13-14-7-6-10-16(11-14)26-15-8-4-3-5-9-15/h3-12,17,19H,13H2,1-2H3
SMILES (canonical and isomeric)
CC1(C(C1C(=O)OCC2=CC(=CC=C2)OC3=CC=CC=C3)C=C(Cl)Cl)C

Synonyms

  • Pounce
  • Permethrine
  • Permetrina
  • Elimite
  • Kudos
  • (3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate
  • Permethrinum
  • Acticin
  • Ambushfog
  • Chinetrin
  • Corsair
  • Dragnet
  • Ecsumin
  • Ectiban
  • Efmethrin
  • Imperator
  • Kaleait
  • Kestrel
  • Lyclear
  • Outflank
  • Perigen
  • Permasect
  • Perthrine
  • Quamlin
  • Stomoxi
Show all 39 synonyms
  • Stomoxin
  • Stomozan
  • Coopex
  • Cosair
  • Eksmin
  • Exsmin
  • Ipitox
  • Picket
  • Pramex
  • Exmin
  • Expar
  • Kafil
  • Kavil
  • Anomethrin N

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless crystals to a viscous liquid, Color, white to pale yellowexp.
Melting point
<20exp.
Boiling point
>290exp.
Density
Relative density (water = 1): 1.2exp.
Solubility
In water, 0.0111 mg/L at 20 °C, pH 7.0-9.3 (OECD Method 105)exp.
Vapour pressure
Cis-isomers 2.9 × 10⁻³ mPa at 25 °C, trans-isomers 9.2 × 10⁻⁴ Pa at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
391.29 g/molcalc.
Exact mass
390.079 Dacalc.
LogP (octanol/water)
6.11calc.
Topological polar surface area
35.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
6calc.
Heavy atoms
26calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.29calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C(OCc1cccc(Oc2ccccc2)c1)C1CC1

O=C(OCc1cccc(Oc2ccccc2)c1)C1CC1

3 rings, 20 atoms.

165 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H332Harmful if inhaled.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (17)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077
Transport hazard class
6.1
Packing group
III

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Permethrin suppliers

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All 165 suppliers
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Where suppliers are based

165 suppliers in 28 countries

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Permethrin price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

The pyrethroids are the most widely used class of insecticides in wood preservation because of their broad-spectrum activity, high efficacy especially against wood boring beetle, and high resistance to leaching. (Synthetic pyrethroids).

Insecticide, seed treatment/protectant.

It has a potential application for forest protection and vector control for the control of noxious insects in the household and on cattle, for the control of body lice, and in mosquito nets.

Use classes: Insecticides.

Pharmacological actions

  • Enzyme Inhibitors
  • Insecticides

Roles

  • acaricide
  • agrochemical
  • antibacterial agent
  • antibacterial drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • antiparasitic agent
  • biophysical role
  • ectoparasiticide
  • insecticide
  • membrane transport modulator
  • pesticide
  • pharmaceutical
  • pyrethroid ester acaricide
  • pyrethroid ester insecticide
  • pyrethroid insecticide
  • scabicide
  • sodium channel modulator

Functional uses

  • Biocide

Pharmacology

Permethrin is a Pyrethroid.

How it is made

Permethrin can be produced by condensation of 3-phenoxybenzyl alcohol with (1RS)-cis/trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid.

The starting acid is prepared by a variation of the conventional chrysanthemic acid synthesis using ethyldiazoacetate in which 1,1-dichloro-4-methyl-1,3-pentadiene is reacted with ethyldiazoacetate in the presence of a copper catalyst and the resulting ethyl (+,-)- cis,trans-2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylate hydrolysed to the free acid.

Read more

The cis- and trans-isomers can be separated from one another by selective crystallization from n-hexane in which the cis-isomer is more soluble. The starting acid is then reacted with 3-phenoxybenzyl alcohol to give permethrin.

Preparation of the racemic mixture: T. Mizutani et al, German patent 2437882 (1975 to Sumitomo), F. Mori et al, German patent 2544150, eidem, United States of America patent 4113968 (1976, 1978, both to Kuraray).

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 613-058-00-2

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Permethrin is traded under.

HS 2916.20Indicative HS code

Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…

World exports in 2024
$489M
−6.1% vs 2023, imports $608M
2019 to 2024
Top exporters
  1. China45.5%
  2. India * partner reported18.6%
  3. Japan11.2%
Top importers
  1. Brazil20.3%
  2. United States15.7%
  3. India * partner reported12.8%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Permethrin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Permethrin, based on the data on this page

What is Permethrin?

Permethrin is a cyclopropanecarboxylate ester in which the esterifying alcohol is 3-phenoxybenzyl alcohol and the cyclopropane ring is substituted with a 2,2-dichlorovinyl group and with gem-dimethyl groups.

What is the CAS number of Permethrin?

The CAS registry number of Permethrin is 52645-53-1. Other or deprecated CAS numbers: 52341-32-9, 52341-33-0, 93389-07-2.

What is the molecular formula and weight of Permethrin?

The molecular formula of Permethrin is C21H20Cl2O3 and its molar mass is 391.29 g/mol.

What is Permethrin used for?

The pyrethroids are the most widely used class of insecticides in wood preservation because of their broad-spectrum activity, high efficacy especially against wood boring beetle, and high resistance to leaching. (Synthetic pyrethroids). Insecticide, seed treatment/protectant.

Is Permethrin hazardous?

Permethrin carries the GHS signal word "Warning". Main hazards: harmful if swallowed, may cause an allergic skin reaction, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Permethrin?

Permethrin is usually classified under HS code 291620 (Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Permethrin?

CompoundList lists 165 suppliers of Permethrin in China, United States, India, Brazil and 24 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Permethrin in India?

35 suppliers in India list Permethrin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Permethrin?

Suppliers quote Permethrin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Permethrin

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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