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Carboxylic acids and anhydrides

Sodium (2,4-dichlorophenoxy)acetate

Also known as 2,4-D, sodium salt

CAS 2702-72-9Formula C8H6Cl2NaO3Molar mass 244.03 g/molEC 220-290-4
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 4 suppliers listed
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Sodium (2,4-dichlorophenoxy)acetate chemical structure, C8H6Cl2NaO3, CAS 2702-72-9
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Melting point
215 °C
Solubility
Soluble
HS code
291899
Category
Carboxylic acids and anhydrides
UN number
UN 3077
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Sodium (2,4-dichlorophenoxy)acetate?

Plain description, key identifiers and synonyms

2,4-d sodium salt appears as a clear brown to black liquid with a characteristic phenoxy odor. Primary hazard is threat to the environment. Immediate steps should be taken to limit spread to the environment. Easily penetrates the soil to contaminate groundwater and nearby waterways.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
2702-72-9
EC number
220-290-4
Molecular formula
C8H6Cl2NaO3
InChIKey
UFJKHDMPEUOKGV-UHFFFAOYSA-N
InChI
InChI=1S/C8H6Cl2O3.Na/c9-5-1-2-7(6(10)3-5)13-4-8(11)12;/h1-3H,4H2,(H,11,12);
SMILES (canonical and isomeric)
C1=CC(=C(C=C1Cl)Cl)OCC(=O)O.[Na]

Synonyms

  • 2,4-D, sodium salt

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

Physical form
Liquidexp.
Melting point
215 °Cexp.
Solubility
Solubleexp.

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
244.03 g/molcalc.
Exact mass
242.9592 Dacalc.
LogP (octanol/water)
2.08calc.
Topological polar surface area
46.53 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
14calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.13calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
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.
  • H411Toxic 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.
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

Sodium (2,4-dichlorophenoxy)acetate suppliers

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

All 4 suppliers
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Where suppliers are based

4 suppliers in 3 countries

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Sodium (2,4-dichlorophenoxy)acetate 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

Frequently asked questions

Quick answers about Sodium (2,4-dichlorophenoxy)acetate, based on the data on this page

What is Sodium (2,4-dichlorophenoxy)acetate?

2,4-d sodium salt appears as a clear brown to black liquid with a characteristic phenoxy odor. Primary hazard is threat to the environment. Immediate steps should be taken to limit spread to the environment. Easily penetrates the soil to contaminate groundwater and nearby waterways.

What is the CAS number of Sodium (2,4-dichlorophenoxy)acetate?

The CAS registry number of Sodium (2,4-dichlorophenoxy)acetate is 2702-72-9.

What is the molecular formula and weight of Sodium (2,4-dichlorophenoxy)acetate?

The molecular formula of Sodium (2,4-dichlorophenoxy)acetate is C8H6Cl2NaO3 and its molar mass is 244.03 g/mol.

Is Sodium (2,4-dichlorophenoxy)acetate hazardous?

Sodium (2,4-dichlorophenoxy)acetate 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 Sodium (2,4-dichlorophenoxy)acetate?

Sodium (2,4-dichlorophenoxy)acetate 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 Sodium (2,4-dichlorophenoxy)acetate?

CompoundList lists 4 suppliers of Sodium (2,4-dichlorophenoxy)acetate in United States, China and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Sodium (2,4-dichlorophenoxy)acetate in India?

1 supplier in India list Sodium (2,4-dichlorophenoxy)acetate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Sodium (2,4-dichlorophenoxy)acetate?

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Guides for buyers

Practical guides that help when you source, ship or handle Sodium (2,4-dichlorophenoxy)acetate

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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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