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Aromatic building blocks

2,4-D-Ethyl

Also known as Ethyl 2,4-dichlorophenoxyacetate, 2,4-D ethyl ester, 2,4-D-ethyl ester

CAS 533-23-3Formula C10H10Cl2O3Molar mass 249.09 g/molEC 208-558-9
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 5 suppliers listed
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2,4-D-Ethyl chemical structure, C10H10Cl2O3, CAS 533-23-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
533-23-3
Formula
C10H10Cl2O3
Molar mass
249.09 g/mol
EC number
208-558-9
HS code
291899
Category
Aromatic building blocks

What is 2,4-D-Ethyl?

Plain description, key identifiers and synonyms

2,4-D-Ethyl is a chemical substance with the molecular formula C10H10Cl2O3 and a molar mass of 249.09 g/mol. Its CAS registry number is 533-23-3. The IUPAC name is ethyl 2-(2,4-dichlorophenoxy)acetate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl 2-(2,4-dichlorophenoxy)acetate
CAS number
533-23-3 CAS number cross-checked
EC number
208-558-9
Molecular formula
C10H10Cl2O3
UNII
S8J68U4959
MDL number
MFCD00053215
InChIKey
JSLBZIVMVVHMDJ-UHFFFAOYSA-N
InChI
InChI=1S/C10H10Cl2O3/c1-2-14-10(13)6-15-9-4-3-7(11)5-8(9)12/h3-5H,2,6H2,1H3
SMILES (canonical and isomeric)
CCOC(=O)COC1=C(C=C(C=C1)Cl)Cl

Synonyms

  • Ethyl 2,4-dichlorophenoxyacetate
  • 2,4-D ethyl ester
  • 2,4-D-ethyl ester
  • Weedone 40
  • Estone 80
  • 2,4-DEE
  • Ethyl (2,4-dichlorophenoxy)acetate
  • (2,4-Dichlorophenoxy)acetic acid ethyl ester
  • Ethyl 2,4-dichlorobenzeneacetate
  • Acetic acid, (2,4-dichlorophenoxy)-, ethyl ester
  • Knochweed
  • KNOCK WEED
  • Bladex c
  • KNOCK WEED 4G
  • Benzeneacetic acid, 2,4-dichloro-, ethyl ester
  • 2-(2,4-Dichlorophenoxy)acetic acid ethyl ester
  • Acetic acid, 2-(2,4-dichlorophenoxy)-, ethyl ester
  • 2,4-D, ETHYL ESTER
  • Benzeneacetic acid, 2,4-dichloro-, ethyl ester (9CI)
  • Ethyl 2-(2,4-dichlorophenoxy)acetate
  • 2,4-Dethylester
  • Ethyl 2-(2,4-dichloro-phenoxy)acetate
  • 2,4-PA-ethyl
  • 2,4-D Ethyl
  • 2,4-Dichlorophenoxyacetic acid ethyl ester
Show all 32 synonyms
  • (2,4-Dichlorophenyloxy)acetic acid ethyl ester
  • Acetic acid,2-(2,4-dichlorophenoxy)-, ethyl ester
  • ethyl 2,4-dichloro-phenoxyacetate
  • ethyl 2-(2,4-dichlorophenoxy)ethanoate
  • 2,4-D ETHYL ESTER, 1GM, NEAT
  • (2,4-dichlorophenoxy)-aceticaciethylester
  • 2.4-D ethyl ester 1g [533-23-3]

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
249.09 g/molcalc.
Exact mass
248.0007 Dacalc.
LogP (octanol/water)
2.94calc.
Topological polar surface area
35.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.3calc.
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
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H318Causes serious eye damage.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (17)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • 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.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • 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

2,4-D-Ethyl suppliers

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Where suppliers are based

5 suppliers in 2 countries

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2,4-D-Ethyl 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

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2,4-D-Ethyl 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 2,4-D-Ethyl is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,4-D-Ethyl, based on the data on this page

What is 2,4-D-Ethyl?

2,4-D-Ethyl is a chemical substance with the molecular formula C10H10Cl2O3 and a molar mass of 249.09 g/mol. Its CAS registry number is 533-23-3. The IUPAC name is ethyl 2-(2,4-dichlorophenoxy)acetate.

What is the CAS number of 2,4-D-Ethyl?

The CAS registry number of 2,4-D-Ethyl is 533-23-3.

What is the molecular formula and weight of 2,4-D-Ethyl?

The molecular formula of 2,4-D-Ethyl is C10H10Cl2O3 and its molar mass is 249.09 g/mol.

What is 2,4-D-Ethyl used for?

Known uses and roles of 2,4-D-Ethyl include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 2,4-D-Ethyl hazardous?

2,4-D-Ethyl carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause an allergic skin reaction, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2,4-D-Ethyl?

2,4-D-Ethyl 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 2,4-D-Ethyl?

CompoundList lists 5 suppliers of 2,4-D-Ethyl in India 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 2,4-D-Ethyl in India?

4 suppliers in India list 2,4-D-Ethyl on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2,4-D-Ethyl?

Suppliers quote 2,4-D-Ethyl 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 2,4-D-Ethyl

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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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