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Herbicides

Benfluralin

Also known as Bethrodine, Balan, Benefin

CAS 1861-40-1Formula C13H16F3N3O4Molar mass 335.28 g/molEC 217-465-2
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard, Hazardous to the environment 4 suppliers listed
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Benfluralin chemical structure, C13H16F3N3O4, CAS 1861-40-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellow-orange crystals
Melting point
65 to 66.5
Boiling point
148 to 149
Solubility
In water, 0.1 mg/L at 25 °C
HS code
292142
Category
Herbicides
UN number
UN 3077
Illustrative photo, yellow pigment powder in a glass jar on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Benfluralin?

Plain description, key identifiers and synonyms

Benfluralin is a tertiany amino compound that is 2,6-dinitro-4-(trifluoromethyl)aniline in which the hydrogens attached to the aniline nitrogen have been replaced by one ethyl and one butyl group. It is used as a pre-emergence herbicide used for the control of grass and other weeds in a range of food and non-food crops. It has a role as a herbicide and an agrochemical. It is a C-nitro compound, an organofluorine compound, a substituted aniline and a tertiary amino compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)aniline
CAS number
1861-40-1 CAS number cross-checked
EC number
217-465-2
Molecular formula
C13H16F3N3O4
UNII
28224BUY6R
MDL number
MFCD00078630
InChIKey
SMDHCQAYESWHAE-UHFFFAOYSA-N
InChI
InChI=1S/C13H16F3N3O4/c1-3-5-6-17(4-2)12-10(18(20)21)7-9(13(14,15)16)8-11(12)19(22)23/h7-8H,3-6H2,1-2H3
SMILES (canonical and isomeric)
CCCCN(CC)C1=C(C=C(C=C1[N+](=O)[O-])C(F)(F)F)[N+](=O)[O-]

Synonyms

  • Bethrodine
  • Balan
  • Benefin
  • Benfluraline
  • Benephin
  • Flubalex
  • Balfin
  • Benefex
  • Binnell
  • Bonalan
  • Quilan
  • Banafine
  • Carpidor
  • Benalan
  • Emblem
  • N-butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)aniline
  • Blulan
  • N-Butyl-2,6-dinitro-N-ethyl-4-trifluoromethylaniline
  • N-Butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)benzenamine
  • N-Butyl-N-ethyl-2,6-dinitro-4-trifluoromethylaniline
  • N-Butyl-N-ethyl-alpha,alpha,alpha-trifluoro-2,6-dinitro-p-toluidine
  • alpha,alpha,alpha-Trifluoro-2,6-dinitro-N,N-ethylbutyl-p-toluidine
  • N-Butyl N-ethyl-2,6-dinitro-4-(trifluoromethyl)benzeneamine
  • p-Toluidine, N-butyl-N-ethyl-alpha,alpha,alpha-trifluoro-2,6-dinitro-
  • Benzenamine, N-butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)-
Show all 28 synonyms
  • Benfluraline [ISO-French]
  • Benfluralin (Standard)
  • DivK1c_006526

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
Yellow-orange crystalsexp.
Odour
NO APPRECIABLE ODORexp.
Melting point
65 to 66.5exp.
Boiling point
148 to 149exp.
Solubility
In water, 0.1 mg/L at 25 °Cexp.
Vapour pressure
6.5 × 10⁻⁵ mm Hg at 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
335.28 g/molcalc.
Exact mass
335.1093 Dacalc.
LogP (octanol/water)
4.15calc.
Topological polar surface area
89.52 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
7calc.
Heavy atoms
23calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.54calc.
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
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H351Suspected of causing cancer.
  • H361dSuspected of damaging the unborn child.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (18)
  • P203Obtain, read and follow all safety instructions before use.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • 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.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P405Store locked up.
  • 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

Benfluralin suppliers

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Where suppliers are based

4 suppliers in 2 countries

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Benfluralin price

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Uses and applications

What the substance is used for, by industry and function

Benfluralin has been registered in the United States since l970 for use as a pre-emergent dinitroaniline herbicide.

Benfluralin is a pre-emergent dinitroaniline herbicide used to control grasses and other weed species. Benfluralin is used alone and is also commonly formulated with trifluralin and oryzalin. Benfluralin is used on a single food crop (pre-plant on lettuce), and on several feed crops (pre-plant on alfalfa, clover, trefoil). There are tolerances for benfluralin on alfalfa, birdsfoot trefoil, clover, and lettuce. The use for peanuts has been voluntarily canceled by the registrant ...

Read more

Benfluralin is registered for use on non-bearing fruit and nut trees, non-bearing berries, non-bearing vineyards, turf, ornamentals, rights of way (including industrial sites, utility substations, highway guardrails, sign posts, and delineators), fence rows/hedgerows, and Christmas tree plantations.

Control of annual grasses and some annual broad-leaved weeds in peanuts, lettuce cucumbers, chicory, endives, field beans, french beans, lentils, lucerne. Applied pre-emergence, with soil incorporation.

Use classes: Herbicides.

Roles

  • agrochemical
  • herbicide
  • pesticide

Functional uses

  • Biocide

How it is made

Benfluralin is produced by nitration of 4-chloro-trifluorotoluene, followed by treatment with N-ethylbutylamine.

Benfluralin is made from 1-chloro-4-trifluoromethylbenzene which in turn may be made by the reaction of 4-chloro-3,5-dinitrobenzoic acid with sulfur tetrafluoride. The product of the first step is then reacted with butylethylamine to give benfluralin.

Lab method of purification: the crude mixture is dissolved in hexane & passed over a florisil chromatographic column. The first orange-colored band is pure benefin. It can be recrystallized from hexane.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 612-295-00-9

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: benfluralin (ISO), N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine, Ref no: 1744, Annex ref: II/1744

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2921.42Indicative HS code

Aniline derivatives and their salts

World exports in 2024
$495M
−2.5% vs 2023, imports $440M
2019 to 2024
Top exporters
  1. China69.8%
  2. India * partner reported19.6%
  3. Japan3.3%
Top importers
  1. Pakistan17.0%
  2. United Arab Emirates * partner reported12.7%
  3. Brazil10.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Benfluralin?

Benfluralin is a tertiany amino compound that is 2,6-dinitro-4-(trifluoromethyl)aniline in which the hydrogens attached to the aniline nitrogen have been replaced by one ethyl and one butyl group. It is used as a pre-emergence herbicide used for the control of grass and other weeds in a range of food and non-food crops.

What is the CAS number of Benfluralin?

The CAS registry number of Benfluralin is 1861-40-1.

What is the molecular formula and weight of Benfluralin?

The molecular formula of Benfluralin is C13H16F3N3O4 and its molar mass is 335.28 g/mol.

What is Benfluralin used for?

Benfluralin has been registered in the United States since l970 for use as a pre-emergent dinitroaniline herbicide. Benfluralin is a pre-emergent dinitroaniline herbicide used to control grasses and other weed species. Benfluralin is used alone and is also commonly formulated with trifluralin and oryzalin.

Is Benfluralin hazardous?

Benfluralin carries the GHS signal word "Warning". Main hazards: causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Benfluralin?

Benfluralin is usually classified under HS code 292142 (Aniline derivatives and their salts). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Benfluralin?

CompoundList lists 4 suppliers of Benfluralin in United States and Italy. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Benfluralin?

Suppliers quote Benfluralin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

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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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