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Herbicides

Flufenacet

Also known as Fluthiamide, Thiafluamide, Fluthiamid

CAS 142459-58-3Formula C14H13F4N3O2SMolar mass 363.34 g/molEC 604-290-5
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard, Hazardous to the environment 15 suppliers listed
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Flufenacet chemical structure, C14H13F4N3O2S, CAS 142459-58-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White to tan solid
Melting point
76 to 79
Boiling point
Decomposes
Density
1.312 g/mL
Solubility
In water, 56 mg/L (pH 4) at 25 ยฐC, 56 mg/L (pH 7) at 25 ยฐC, 54 mg/L (pH 9) at 25 ยฐC
HS code
293499
Category
Herbicides
Illustrative photo, a white jumbo bulk bag of powder in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Flufenacet?

Plain description, key identifiers and synonyms

Flufenacet is an aromatic amide that is acetamide in which the amino hydrogens have been replaced by a propan-2-yl and 4-fluorophenyl groups while the methyl hydrogen is replaced by a [5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy group. It has a role as a herbicide, a xenobiotic and an environmental contaminant. It is a member of thiadiazoles, an aromatic amide and a member of monofluorobenzenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-(4-fluorophenyl)-N-propan-2-yl-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide
CAS number
142459-58-3 CAS number cross-checked
EC number
604-290-5
Molecular formula
C14H13F4N3O2S
UNII
OL44PP5145
MDL number
MFCD01751191
InChIKey
IANUJLZYFUDJIH-UHFFFAOYSA-N
InChI
InChI=1S/C14H13F4N3O2S/c1-8(2)21(10-5-3-9(15)4-6-10)11(22)7-23-13-20-19-12(24-13)14(16,17)18/h3-6,8H,7H2,1-2H3
SMILES (canonical and isomeric)
CC(C)N(C1=CC=C(C=C1)F)C(=O)COC2=NN=C(S2)C(F)(F)F

Synonyms

  • Fluthiamide
  • Thiafluamide
  • Fluthiamid
  • Foe 5043
  • N-(4-Fluorophenyl)-N-(1-methylethyl)-2-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy)acetamide
  • BAY FOE-5043
  • N-(4-fluorophenyl)-N-(propan-2-yl)-2-{[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy}acetamide
  • 4'-Fluoro-N-isopropyl-2-(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yloxy)acetanilide
  • N-Isopropyl-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)-(4'-fluorooxyacetanilide)
  • n-(4-fluorophenyl)-n-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide
  • 4'-fluoro-N-isopropyl-2-[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yloxy]acetanilide
  • N-(4-Fluorophenyl)-N-(propan-2-yl)-2-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy)acetamide
  • N-(4-fluorophenyl)-N-isopropyl-2-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy)acetamide
  • N-(4-fluorophenyl)-N-propan-2-yl-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide
  • N-(4-fluorophenyl)-N-isopropyl-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide
  • N-(4-fluorophenyl)-N-isopropyl-2-(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yloxy)acetamide
  • N-(4-Fluorophenyl)-N-isopropyl-2-[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yloxy]acetamide
  • BAY-FOE 5043
  • Define
  • Acetamide, N-(4-fluorophenyl)-N-(1-methylethyl)-2-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy)-
  • Flufenacet 10 microg/mL in Cyclohexane
  • Flufenacet, PESTANAL(R), analytical standard
  • Acetamide,N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]-

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
White to tan solidexp.
Odour
Mercaptan-like odorexp.
Melting point
76 to 79exp.
Boiling point
Decomposesexp.
Density
1.312 g/mLexp.
Solubility
In water, 56 mg/L (pH 4) at 25 ยฐC, 56 mg/L (pH 7) at 25 ยฐC, 54 mg/L (pH 9) at 25 ยฐCexp.
Vapour pressure
6.75 ร— 10โปโท mm Hg at 20 ยฐC (6.0 ร— 10โปยฒ mPa at 20 ยฐC)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
363.34 g/molcalc.
Exact mass
363.0665 Dacalc.
LogP (octanol/water)
3.52calc.
Topological polar surface area
55.32 ร…ยฒcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
5calc.
Heavy atoms
24calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.36calc.
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, O=C(COc1nncs1)Nc1ccccc1

O=C(COc1nncs1)Nc1ccccc1

2 rings, 16 atoms.

4 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
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (16)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • 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.
  • P319Get medical help if you feel unwell.
  • 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

Flufenacet suppliers

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All 15 suppliers
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Where suppliers are based

15 suppliers in 4 countries

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Flufenacet 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

Pre-plant-incorporated, pre-plant-surface, pre-emergence in maize and soya beans, pre-planting in tomatoes, pre-emergence in potatoes and sunflowers, and post-emergence in maize, wheat and rice.

Flufenacet is applied to the soil surface or incorporated preemergence in field corn, corn grown for silage, or soybeans to control certain annual grasses and broadleaf weeds.

Use classes: Pesticides, Herbicides.

Roles

  • environmental contaminant
  • herbicide
  • pesticide
  • xenobiotic

Functional uses

  • Biocide

How it is made

Flufenacet can be made by reaction of equivalent quantities of 2-methylsulfonyl-5-trifluoromethyl-1,3,4-thiadiazole with 2-hydroxy-[N-(4-fluoropheny)-N-isopropyl] acetamide in the presence of sodium hydroxide in acetone at 0 - 5 ยฐC.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 613-164-00-9

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Flufenacet?

Flufenacet is an aromatic amide that is acetamide in which the amino hydrogens have been replaced by a propan-2-yl and 4-fluorophenyl groups while the methyl hydrogen is replaced by a [5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy group. It has a role as a herbicide, a xenobiotic and an environmental contaminant.

What is the CAS number of Flufenacet?

The CAS registry number of Flufenacet is 142459-58-3.

What is the molecular formula and weight of Flufenacet?

The molecular formula of Flufenacet is C14H13F4N3O2S and its molar mass is 363.34 g/mol.

What is Flufenacet used for?

Pre-plant-incorporated, pre-plant-surface, pre-emergence in maize and soya beans, pre-planting in tomatoes, pre-emergence in potatoes and sunflowers, and post-emergence in maize, wheat and rice.

Is Flufenacet hazardous?

Flufenacet carries the GHS signal word "Warning". Main hazards: harmful if swallowed, may cause an allergic skin reaction, may cause damage to organs through prolonged or repeated exposure. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Flufenacet?

Flufenacet is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclicโ€ฆ). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Flufenacet?

CompoundList lists 15 suppliers of Flufenacet in China, India, Turkey and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Flufenacet in India?

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

What is the price of Flufenacet?

Suppliers quote Flufenacet 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 Flufenacet

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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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