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Herbicides

Bifenox

Also known as Methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate, Modown, 5-(2,4-Dichlorophenoxy)-2-nitrobenzoic acid methyl ester

CAS 42576-02-3Formula C14H9Cl2NO5Molar mass 342.13 g/molEC 255-894-7
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 1 supplier listed
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Bifenox chemical structure, C14H9Cl2NO5, CAS 42576-02-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Solid
Melting point
85 °C
Density
1.155 g/ml
Solubility
In water, 0.398 mg/l @ 25 °C
HS code
291899
Category
Herbicides
Illustrative photo, a shrink wrapped pallet of kraft paper sacks in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Bifenox?

Plain description, key identifiers and synonyms

MC-4379 is a nitrobenzoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate
CAS number
42576-02-3 CAS number cross-checked
EC numbers
255-894-7, 642-906-4
Molecular formula
C14H9Cl2NO5
UNII
KSB85XT26Y
MDL number
MFCD00055314
InChIKey
SUSRORUBZHMPCO-UHFFFAOYSA-N
InChI
InChI=1S/C14H9Cl2NO5/c1-21-14(18)10-7-9(3-4-12(10)17(19)20)22-13-5-2-8(15)6-11(13)16/h2-7H,1H3
SMILES (canonical and isomeric)
COC(=O)C1=C(C=CC(=C1)OC2=C(C=C(C=C2)Cl)Cl)[N+](=O)[O-]

Synonyms

  • Methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate
  • Modown
  • 5-(2,4-Dichlorophenoxy)-2-nitrobenzoic acid methyl ester
  • 2,4-Dichlorophenyl 3-(methoxycarbonyl)-4-nitrophenyl Ether
  • methyl 5-(2,4-dichlorophenoxy)-2-nitro-benzoate
  • 2,4-dichlorophenyl-3'-carboxymethyl-4'-nitrophenyl ether
  • Benzoic acid, 5-(2,4-dichlorophenoxy)-2-nitro-, methyl ester
  • Modown 4 flowable
  • Susrorubzhmpco-uhfffaoysa-
  • Bifenox 10 |Ig/mL in Cyclohexane
  • Bifenox 10 |Ig/mL in Acetonitrile
  • Bifenox 10 microg/mL in Cyclohexane
  • Bifenox 10 microg/mL in Acetonitrile
  • MC 4379
  • Bifenox, PESTANAL(R), analytical standard
  • methyl 2-nitro-5-(2'4'-dichlorophenoxy)-benzoate
  • Methyl 5-(2',4'-dichlorophenoxy)-2-nitrobenzoate
  • 2,4-Dichlorophenyl 3-Methoxycarbonyl-4-nitrophenyl ether
  • 2,4-Dichlorophenyl 3-methoxycarbonyl-4-nitrophenyl ether2246

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
Solidexp.
Odour
Slightly aromatic odorexp.
Melting point
85 °Cexp.
Density
1.155 g/mlexp.
Solubility
In water, 0.398 mg/l @ 25 °Cexp.
Vapour pressure
2.4 × 10⁻⁶ 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
342.13 g/molcalc.
Exact mass
340.9858 Dacalc.
LogP (octanol/water)
4.48calc.
Topological polar surface area
78.67 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
22calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.07calc.
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, c1ccc(Oc2ccccc2)cc1

c1ccc(Oc2ccccc2)cc1

2 rings, 13 atoms, the Diphenyl ether ring system.

9,579 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.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Bifenox suppliers

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

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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

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Bifenox 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

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

EPA is initiating this action for those pesticides which have no food use registrations. The applicable registrations for these pesticides have been canceled because of nonpayment of maintenance fees or by registrant request. Effective date: This regulation becomes effective September 27, 1995.

Control of annual broad-leaved weeds and some grasses in cereals, maize, sorghum, soy beans, rice, and some other crops. Applied pre-plant incorporated, pre-emergence, or directed post-emergence. Often used in combination with other herbicides to extend the spectrum of activity.

Use classes: Pesticides, Herbicides.

How it is made

Bifenox is produced by reaction of potassium 2,4-dichlorophenolate with methyl 5-chloro-2-nitrobenzoate.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 607-769-00-7

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Bifenox 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 Bifenox is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Bifenox?

MC-4379 is a nitrobenzoic acid.

What is the CAS number of Bifenox?

The CAS registry number of Bifenox is 42576-02-3.

What is the molecular formula and weight of Bifenox?

The molecular formula of Bifenox is C14H9Cl2NO5 and its molar mass is 342.13 g/mol.

What is Bifenox used for?

The active ingredient is no longer contained in any registered products ... "cancelled.". EPA is initiating this action for those pesticides which have no food use registrations. The applicable registrations for these pesticides have been canceled because of nonpayment of maintenance fees or by registrant request.

Is Bifenox hazardous?

Bifenox carries the GHS signal word "Warning". Main hazards: harmful if swallowed, 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 Bifenox?

Bifenox 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 Bifenox?

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

What is the price of Bifenox?

Suppliers quote Bifenox 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 Bifenox

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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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