CompoundList
Sign in
Screening compounds

trans-Permethrin

Also known as Biopermethrin, (+)-trans-Permethrin, Transpermethrin

CAS 61949-77-7Formula C21H20Cl2O3Molar mass 391.29 g/molEC 263-347-9
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 9 suppliers listed
Get quotes Compare 9 suppliers
trans-Permethrin chemical structure, C21H20Cl2O3, CAS 61949-77-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
61949-77-7
Formula
C21H20Cl2O3
Molar mass
391.29 g/mol
EC number
263-347-9
HS code
291620
Category
Screening compounds

What is trans-Permethrin?

Plain description, key identifiers and synonyms

trans-Permethrin is a chemical substance with the molecular formula C21H20Cl2O3 and a molar mass of 391.29 g/mol. Its CAS registry number is 61949-77-7. The IUPAC name is cis-(3-phenoxyphenyl)methyl (1R,3S)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
cis-(3-phenoxyphenyl)methyl (1R,3S)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate
CAS number
61949-77-7 CAS number cross-checkedOther or deprecated CAS: 51877-74-8
EC numbers
263-347-9, 621-517-3
Molecular formula
C21H20Cl2O3
UNII
5O0SBK88B7, MQP2PAM1G5
InChIKey
RLLPVAHGXHCWKJ-MJGOQNOKSA-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/t17-,19+/m1/s1
Canonical SMILES
CC1(C)C(C=C(Cl)Cl)C1C(=O)OCc1cccc(Oc2ccccc2)c1
Isomeric SMILES
CC1([C@@H]([C@H]1C(=O)OCC2=CC(=CC=C2)OC3=CC=CC=C3)C=C(Cl)Cl)C

Synonyms

  • Biopermethrin
  • (+)-trans-Permethrin
  • Transpermethrin
  • (1R)-trans-Permethrin
  • (3-phenoxyphenyl)methyl (1R,3S)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate
  • NRDC 147
  • NRDC-147
  • 1R,trans-permethrin
  • 1Rs,trans-permethrin
  • RU 22090
  • m-Phenoxybenzyl trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
  • NRDC-146
  • Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, trans-
  • Permethrin, trans-(+)-
  • trans-meta-Phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
  • Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, (1R,3S)-rel-
  • Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, (1R,3S)-
  • Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, (1R-trans)-
  • 1RS-trans-Permethrin
  • trans-m-Phenoxybenzyl 3-(2,2-dichlorovinyl-2,2-dimethylcyclopropanecarboxylate
  • Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, (1R-trans-)
  • Cyclopropanecarboxylic acid, 3-(2,2-dichlorovinyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, (1R-trans)-
  • NRDC 146
  • Permethrin, trans-
  • (+/-)-trans-Permethrin
Show all 36 synonyms
  • NRDC-143
  • Purity of trans-Permethrin
  • (3-Phenoxyphenyl)methyl (1R,3S)-3-(2,2-dichloroethen-1-yl)-2,2-dimethylcyclopropane-1-carboxylate
  • trans-(+/-)-Permethrin
  • (+)-trans-NRDC-143
  • Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-,(3-phenoxyphenyl)methyl ester, (1R,3S)-rel-
  • trans-Permethrin 10 |Ig/mL in Cyclohexane
  • trans-Permethrin 10 |Ig/mL in Acetonitrile
  • trans-Permethrin 100 |Ig/mL in Cyclohexane
  • trans-Permethrin 10 microg/mL in Acetonitrile
  • trans-Permethrin 10 microg/mL in Cyclohexane

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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.

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

trans-Permethrin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 9 suppliers
9 of 9 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

9 suppliers in 5 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

trans-Permethrin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code trans-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 trans-Permethrin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is trans-Permethrin?

trans-Permethrin is a chemical substance with the molecular formula C21H20Cl2O3 and a molar mass of 391.29 g/mol. Its CAS registry number is 61949-77-7. The IUPAC name is cis-(3-phenoxyphenyl)methyl (1R,3S)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate.

What is the CAS number of trans-Permethrin?

The CAS registry number of trans-Permethrin is 61949-77-7. Other or deprecated CAS numbers: 51877-74-8.

What is the molecular formula and weight of trans-Permethrin?

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

What is trans-Permethrin used for?

Known uses and roles of trans-Permethrin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is trans-Permethrin hazardous?

trans-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 trans-Permethrin?

trans-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 trans-Permethrin?

CompoundList lists 9 suppliers of trans-Permethrin in China, United States, Spain, Netherlands and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of trans-Permethrin?

Suppliers quote trans-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 trans-Permethrin

Get quotes for trans-Permethrin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell trans-Permethrin
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of trans-Permethrin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/trans-permethrin-61949-77-7" title="trans-Permethrin structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Screening compounds or HS code 291620

9 suppliers
Free quotes, contact stays private
Get quotes