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Herbicides

Diflufenican

Also known as N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]pyridine-3-carboxamide, Brodal, 2',4'-Difluoro-2-(alpha,alpha,alpha-trifluoro-m-tolyloxy)nicotinanilide

CAS 83164-33-4Formula C19H11F5N2O2Molar mass 394.30 g/molEC 617-446-2
GHS signal word: Warning. Pictograms: Hazardous to the environment 23 suppliers listed
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Diflufenican chemical structure, C19H11F5N2O2, CAS 83164-33-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
83164-33-4
Formula
C19H11F5N2O2
Molar mass
394.30 g/mol
EC number
617-446-2
HS code
293339
Category
Herbicides

What is Diflufenican?

Plain description, key identifiers and synonyms

Diflufenican is a pyridinecarboxamide that is pyridine-3-carboxamide substituted by a 2,4-difluorophenyl group at the carbamoyl nitrogen and a 3-(trifluoromethyl)phenoxy group at position 2. It has a role as a carotenoid biosynthesis inhibitor, a herbicide, a xenobiotic and an environmental contaminant. It is a pyridinecarboxamide, an aromatic ether and a member of (trifluoromethyl)benzenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]pyridine-3-carboxamide
CAS number
83164-33-4 CAS number cross-checked
EC numbers
617-446-2, 953-443-5
Molecular formula
C19H11F5N2O2
UNII
3T8D1VDO6K
MDL number
MFCD01311804
InChIKey
WYEHFWKAOXOVJD-UHFFFAOYSA-N
InChI
InChI=1S/C19H11F5N2O2/c20-12-6-7-16(15(21)10-12)26-17(27)14-5-2-8-25-18(14)28-13-4-1-3-11(9-13)19(22,23)24/h1-10H,(H,26,27)
SMILES (canonical and isomeric)
C1=CC(=CC(=C1)OC2=C(C=CC=N2)C(=O)NC3=C(C=C(C=C3)F)F)C(F)(F)F

Synonyms

  • N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]pyridine-3-carboxamide
  • Brodal
  • 2',4'-Difluoro-2-(alpha,alpha,alpha-trifluoro-m-tolyloxy)nicotinanilide
  • Ardent
  • Fenican
  • N-(2,4-Difluorophenyl)-2-(3-(trifluoromethyl)phenoxy)-3-pyridinecarboxamide
  • RPA 41670H
  • n-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]-3-pyridinecarboxamide
  • N-(2,4-difluorophenyl)-2-(3-(trifluoromethyl)phenoxy)pyridine-3-carboxamide
  • N-(2,4-Difluorophenyl)-2-(3-(trifluoromethyl)phenoxy)nicotinamide
  • Diflufenicanil
  • N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]nicotinamide
  • N-(2,4-difluorophenyl)-2-(3-trifluoromethylphenoxy)nicotinamide
  • 3-Pyridinecarboxamide, N-(2,4-difluorophenyl)-2-(3-(trifluoromethyl)phenoxy)-
  • 3-Pyridinecarboxamide, N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]-
  • Canyon
  • M&B 38544
  • Diflufenican (Standard)
  • Diflufenican 10 microg/mL in Acetone
  • Diflufenican 10 microg/mL in Acetonitrile
  • Diflufenican 100 microg/mL in Acetonitrile
  • M & B 38544
  • Diflufenican, PESTANAL(R), analytical standard
  • N-(2,4-Difluorophenyl)-2-(3-(trifluoromethyl)-phenoxy)nicotinamide
  • Diflufenican,2',4'-difluoro-2-(alpha,alpha,alpha,trifluoro-m-tolyloxy) nicotinanilide

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
394.30 g/molcalc.
Exact mass
394.0741 Dacalc.
LogP (octanol/water)
5.42calc.
Topological polar surface area
51.22 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
28calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.05calc.
Formal charge
0calc.
Stereocentres
0calc.
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(Nc1ccccc1)c1cccnc1Oc1ccccc1

O=C(Nc1ccccc1)c1cccnc1Oc1ccccc1

3 rings, 22 atoms, the 2-Phenoxy-N-phenylpyridine-3-carboxamide ring system.

20 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (3)
  • P273Avoid release to the environment.
  • 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

Diflufenican suppliers

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

All 23 suppliers
23 of 23 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

23 suppliers in 8 countries

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Diflufenican price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Use classes: Herbicides, Pesticides, Pharmaceuticals.

Roles

  • carotenoid biosynthesis inhibitor
  • environmental contaminant
  • enzyme inhibitor
  • herbicide
  • pathway inhibitor
  • pesticide
  • xenobiotic

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 616-032-00-9

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Diflufenican?

Diflufenican is a pyridinecarboxamide that is pyridine-3-carboxamide substituted by a 2,4-difluorophenyl group at the carbamoyl nitrogen and a 3-(trifluoromethyl)phenoxy group at position 2. It has a role as a carotenoid biosynthesis inhibitor, a herbicide, a xenobiotic and an environmental contaminant.

What is the CAS number of Diflufenican?

The CAS registry number of Diflufenican is 83164-33-4.

What is the molecular formula and weight of Diflufenican?

The molecular formula of Diflufenican is C19H11F5N2O2 and its molar mass is 394.30 g/mol.

What is Diflufenican used for?

Use classes: Herbicides, Pesticides, Pharmaceuticals.

Is Diflufenican hazardous?

Diflufenican carries the GHS signal word "Warning". Main hazards: very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Diflufenican?

Diflufenican is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Diflufenican?

CompoundList lists 23 suppliers of Diflufenican in France, China, Brazil, Argentina and 4 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 Diflufenican?

Suppliers quote Diflufenican 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 Diflufenican

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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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