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Herbicides

Fenoprop

Also known as 2-(2,4,5-Trichlorophenoxy)propionic acid, Silvex, Double strength

CAS 93-72-1Formula C9H7Cl3O3Molar mass 269.51 g/molEC 202-271-2
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 5 suppliers listed
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Fenoprop chemical structure, C9H7Cl3O3, CAS 93-72-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless powder
Melting point
179 to 181
Boiling point
>148.9
Density
1.2085 at 20 °C
Solubility
/2,4,5-TP's/ acidic forming amine & alkali-metal salts which are sol in water, acetone,…
HS code
291899
Category
Herbicides
UN number
UN 3077
Illustrative photo, fine white powder in a clear glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Fenoprop?

Plain description, key identifiers and synonyms

Fenoprop is a monocarboxylic acid. It has a role as a phenoxy herbicide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(2,4,5-trichlorophenoxy)propanoic acid
CAS number
93-72-1 CAS number cross-checked
EC number
202-271-2
Molecular formula
C9H7Cl3O3
UNII
D2HZL58IS3
MDL number
MFCD00002646
InChIKey
ZLSWBLPERHFHIS-UHFFFAOYSA-N
InChI
InChI=1S/C9H7Cl3O3/c1-4(9(13)14)15-8-3-6(11)5(10)2-7(8)12/h2-4H,1H3,(H,13,14)
SMILES (canonical and isomeric)
CC(C(=O)O)OC1=CC(=C(C=C1Cl)Cl)Cl

Synonyms

  • 2-(2,4,5-Trichlorophenoxy)propionic acid
  • Silvex
  • Double strength
  • 2-(2,4,5-Trichlorophenoxy)propanoic acid
  • Color-set
  • Fenormone
  • Propon
  • Aqua-vex
  • Fruitone T
  • Silvi-Rhap
  • Sta-fast
  • Miller nu set
  • Kurosal G
  • Herbicides, silvex
  • Kuran
  • 2,4,5-TP
  • Propanoic acid, 2-(2,4,5-trichlorophenoxy)-
  • 2,4,5-TCPPA
  • (+-)-Fenoprop
  • Amchem 2,4,5 TP
  • alpha-(2,4,5-Trichlorophenoxy)propionic acid
  • Propionic acid, 2-(2,4,5-trichlorophenoxy)-
  • 2-(2,4,5-Trichloor-fenoxy)-propionzuur
  • 2-(2,4,5-Trichlor-phenoxy)-propionsaeure
  • Acido 2-(2,4,5-tricloro-fenossi)-propionico
Show all 36 synonyms
  • Acide 2-(2,4,5-trichloro-phenoxy) propionique
  • 2,4,5-TCPP
  • 2,4,5-trichlorophenoxypropionic acid
  • 2,4,5-Trichlorophenoxypropanoic acid
  • Kurosal SL
  • Amchem 2,4,5-TP
  • Rcra waste number U233
  • Kwas 2,4,5-trojchlorofenoksypropionowy
  • Kyselina 2-(2,4,5-trichlorfenoxy)propionova
  • 2,4,5-TP, Silvex
  • (+-)-Silvex

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 powderexp.
Odour
LOW ODOR /SRP: MAY BE DUE TO PHENOLIC IMPURITIES/exp.
Melting point
179 to 181exp.
Boiling point
>148.9exp.
Density
1.2085 at 20 °Cexp.
Solubility
/2,4,5-TP's/ acidic forming amine & alkali-metal salts which are sol in water, acetone, lower alcohol, insol in aromatic & chlorinated hydrocarbons & most non-polar organic solvents. Its lower alkyl esters are slightly volatile .exp.

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
269.51 g/molcalc.
Exact mass
267.9461 Dacalc.
LogP (octanol/water)
3.5calc.
Topological polar surface area
46.53 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.22calc.
Formal charge
0calc.
Stereocentres
1calc.
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.
  • H315Causes skin irritation.
  • 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.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation 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

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

Fenoprop suppliers

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

All 5 suppliers
5 of 5 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

5 suppliers in 4 countries

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Fenoprop 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

In March 1985, the EPA terminated all registrations for the use of this herbicide on rice fields, orchards, sugarcane, rangeland and other noncrop sites. This follows the 1979 emergency action of the agency in banning almost all uses of the pesticide...

Silvex: U.S. Banned (From table).

Use classes: Herbicides.

Roles

  • herbicide
  • pesticide
  • phenoxy herbicide

Functional uses

  • Biocide

How it is made

By interaction of 2,4,5-trichlorophenol with sodium alpha-chloropropionate.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 607-047-00-1

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2918.99Indicative HS code

Carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone)…

World exports in 2024
$1.46B
−1.1% vs 2023, imports $1.54B
2019 to 2024
Top exporters
  1. China40.0%
  2. India * partner reported26.6%
  3. Germany8.0%
Top importers
  1. United States25.6%
  2. Brazil6.7%
  3. Argentina5.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Fenoprop?

Fenoprop is a monocarboxylic acid. It has a role as a phenoxy herbicide.

What is the CAS number of Fenoprop?

The CAS registry number of Fenoprop is 93-72-1.

What is the molecular formula and weight of Fenoprop?

The molecular formula of Fenoprop is C9H7Cl3O3 and its molar mass is 269.51 g/mol.

What is Fenoprop used for?

In March 1985, the EPA terminated all registrations for the use of this herbicide on rice fields, orchards, sugarcane, rangeland and other noncrop sites. This follows the 1979 emergency action of the agency in banning almost all uses of the pesticide... Silvex: U.S. Banned (From table). Use classes: Herbicides.

Is Fenoprop hazardous?

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

What is the HS code of Fenoprop?

Fenoprop is usually classified under HS code 291899 (Carboxylic acids with additional oxygen function and their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fenoprop?

CompoundList lists 5 suppliers of Fenoprop in Germany, India, Netherlands and Singapore. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Fenoprop in India?

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

What is the price of Fenoprop?

Suppliers quote Fenoprop 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 Fenoprop

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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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