CompoundList
Sign in
Aromatic building blocks

Fenchlorphos

Also known as Ronnel, Fenclofos, Fenchlorfos

CAS 299-84-3Formula C8H8Cl3O3PSMolar mass 321.55 g/molEC 206-082-6
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 1 supplier listed
Get quotes See the supplier
Fenchlorphos chemical structure, C8H8Cl3O3PS, CAS 299-84-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless crystals
Melting point
41 °C
Boiling point
97 °C
Density
Relative density (water = 1): 1.48
Solubility
IN WATER: 0.004 G/100 ML @ 25 °C, FREELY SOL IN CARBON TETRACHLORIDE, ETHER, METHYLENE C…
HS code
292019
Category
Aromatic building blocks
UN number
UN 2811
Illustrative photo, colourless crystals beside a jumbo bulk bag in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Fenchlorphos?

Plain description, key identifiers and synonyms

Fenchlorphos is an organic thiophosphate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dimethoxy-sulfanylidene-(2,4,5-trichlorophenoxy)-λ5-phosphane
CAS number
299-84-3 CAS number cross-checked
EC number
206-082-6
Molecular formula
C8H8Cl3O3PS
UNII
89RAG7SB3B
MDL number
MFCD00055245
InChIKey
JHJOOSLFWRRSGU-UHFFFAOYSA-N
InChI
InChI=1S/C8H8Cl3O3PS/c1-12-15(16,13-2)14-8-4-6(10)5(9)3-7(8)11/h3-4H,1-2H3
SMILES (canonical and isomeric)
COP(=S)(OC)OC1=CC(=C(C=C1Cl)Cl)Cl

Synonyms

  • Ronnel
  • Fenclofos
  • Fenchlorfos
  • Korlan
  • Nankor
  • Trolene
  • Viozene
  • Ectoral
  • Etrolene
  • Korlane
  • Nanchor
  • Blitex
  • Remelt
  • Rovan
  • Gesektin K
  • Trichlormetaphos
  • Phenchlorfos
  • Nanker
  • Trichlorometafos
  • Fenchloorfos
  • Dermaphos
  • Trolen
  • Trolene 20L
  • Fenchlorfosu
  • Fenchlorophos
Show all 39 synonyms
  • Dermafosu
  • Smear
  • Dow ET 14
  • Dow ET 57
  • Trichlorometaphos
  • Moorman's Medicated Rid-Ezy
  • ENT 23,284
  • O,O-Dimethyl O-(2,4,5-trichlorophenyl) phosphorothioate
  • Fenclofosum
  • Fenclorvur
  • OMS 123
  • ET 14
  • ET 57
  • Fenclorfos

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 crystalsexp.
Odour
Mercaptan odorexp.
Melting point
41 °Cexp.
Boiling point
97 °Cexp.
Density
Relative density (water = 1): 1.48exp.
Solubility
IN WATER: 0.004 G/100 ML @ 25 °C, FREELY SOL IN CARBON TETRACHLORIDE, ETHER, METHYLENE CHLORIDEexp.
Vapour pressure
8 × 10⁻⁴ MM HG @ 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
321.55 g/molcalc.
Exact mass
319.8997 Dacalc.
LogP (octanol/water)
4.54calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
4calc.
Heavy atoms
16calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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.
  • H312Harmful in contact with skin.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (12)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • 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.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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 2811

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

Fenchlorphos suppliers

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

See the supplier

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

1 supplier in 1 country

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

Fenchlorphos 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

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

Medication: (Human and Vet). (Former use).

Veterinary medication:.

Use classes: Insecticides.

Pharmacology

Ronnel is a synthetic organic thiophosphate compound and organophosphate acetylcholinesterase inhibitor that is used as a pesticide. It is characterized as a colorless or white to light tan crystalline solid with a mercaptan odor, and exposure occurs by inhalation, ingestion, or contact.

How it is made

Reaction of thiophosphoryl chloride with alkali metal 2,4,5-trichlorophenate, followed by separation of the resulting o-(2,4,5-trichlorophenyl)dichlorothiophosphate which is then reacted with sodium methylate

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-052-00-X

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2920.19Indicative HS code

Thiophosphoric esters (phosphorothioates) and their salts, their halogenated…

World exports in 2024
$131M
+2.1% vs 2023, imports $115M
2019 to 2024
Top exporters
  1. China59.7%
  2. Japan17.6%
  3. Germany9.1%
Top importers
  1. Brazil16.0%
  2. United States13.3%
  3. India * partner reported8.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Fenchlorphos?

Fenchlorphos is an organic thiophosphate.

What is the CAS number of Fenchlorphos?

The CAS registry number of Fenchlorphos is 299-84-3.

What is the molecular formula and weight of Fenchlorphos?

The molecular formula of Fenchlorphos is C8H8Cl3O3PS and its molar mass is 321.55 g/mol.

What is Fenchlorphos used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Medication: (Human and Vet). (Former use). Veterinary medication:. Use classes: Insecticides.

Is Fenchlorphos hazardous?

Fenchlorphos carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Fenchlorphos?

Fenchlorphos is usually classified under HS code 292019 (Thiophosphoric esters (phosphorothioates) and their salts, their halogenated…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fenchlorphos?

CompoundList lists 1 supplier of Fenchlorphos in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Fenchlorphos?

Suppliers quote Fenchlorphos 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 Fenchlorphos

Get quotes for Fenchlorphos

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Fenchlorphos
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 Fenchlorphos with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/fenchlorphos-299-84-3" title="Fenchlorphos 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 Aromatic building blocks or HS code 292019

1 supplier
Free quotes, contact stays private
Get quotes