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Herbicides

Dichlorprop

Also known as 2-(2,4-Dichlorophenoxy)propanoic acid, 2-(2,4-Dichlorophenoxy)propionic acid, Dichloroprop

CAS 120-36-5Formula C9H8Cl2O3Molar mass 235.07 g/molEC 204-390-5
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 28 suppliers listed
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Dichlorprop chemical structure, C9H8Cl2O3, CAS 120-36-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless crystals
Melting point
117.5 °C
Density
Relative density (water = 1): 1.4
Flash point
204 °C
Solubility
Solubility in water 900 g acid equivalent/L at 20 °C /Dichlorprop-potassium/
HS code
291899
Category
Herbicides
UN number
UN 3077
Illustrative photo, colourless crystals beside a jumbo bulk bag in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Dichlorprop?

Plain description, key identifiers and synonyms

2-(2,4-dichlorophenoxy)propanoic acid is an aromatic ether that is 2-hydroxypropanoic acid in which the hydroxy group at position 2 has been converted to its 2,4-dichlorophenyl ether. It is a dichlorobenzene, a monocarboxylic acid and an aromatic ether.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(2,4-dichlorophenoxy)propanoic acid
CAS number
120-36-5 CAS number cross-checked
EC number
204-390-5
Molecular formula
C9H8Cl2O3
UNII
J7YV2RKO6Q
MDL number
MFCD00002645
InChIKey
MZHCENGPTKEIGP-UHFFFAOYSA-N
InChI
InChI=1S/C9H8Cl2O3/c1-5(9(12)13)14-8-3-2-6(10)4-7(8)11/h2-5H,1H3,(H,12,13)
SMILES (canonical and isomeric)
CC(C(=O)O)OC1=C(C=C(C=C1)Cl)Cl

Synonyms

  • 2-(2,4-Dichlorophenoxy)propanoic acid
  • 2-(2,4-Dichlorophenoxy)propionic acid
  • Dichloroprop
  • Hormatox
  • Herbizid DP
  • Hedonal DP
  • Cornox RK
  • Kildip
  • Celatox-dp
  • Canapur DP
  • Propanoic acid, 2-(2,4-dichlorophenoxy)-
  • Seritox 50
  • Weedone dp
  • 2,4-DP
  • Cornoxynil
  • Mayclene
  • Weedone 170
  • Cornox rd
  • Textrone M
  • Oxytril P
  • Dikofag DP
  • Tri-cornox sprcial
  • Ustilan NK25
  • (+-)-Dichlorprop
  • Cornox RK 64
Show all 39 synonyms
  • Weedone 2,4-DP
  • 2-(2,4-Dp)
  • Celatox DP
  • AF 302
  • RD 406
  • BH 2,4-DP
  • alpha-(2,4-Dichlorophenoxy)propionic acid
  • 2-(2,4-Dichloor-fenoxy)-propionzuur
  • 2-(2,4-Dichlor-phenoxy)-propionsaeure
  • Propionic acid, 2-(2,4-dichlorophenoxy)-
  • 2,4-Dichlorophenoxy-alpha-propionic acid
  • Dicopur dp
  • Dichlorprop acid
  • alpha-(2,4-Dichlorophenoxy) propionic acid

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
Colorless crystalsexp.
Odour
ODORLESSexp.
Melting point
117.5 °Cexp.
Density
Relative density (water = 1): 1.4exp.
Flash point
204 °Cexp.
Solubility
Solubility in water 900 g acid equivalent/L at 20 °C /Dichlorprop-potassium/exp.
Vapour pressure
7.50 × 10⁻⁸ mm Hg at 20 °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
235.07 g/molcalc.
Exact mass
233.985 Dacalc.
LogP (octanol/water)
2.85calc.
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
0.22calc.
Formal charge
0calc.
Stereocentres
1calc.
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

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
Precautionary statements (13)
  • 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.
  • 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.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077
Transport hazard class
9
Packing group
III

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

Dichlorprop suppliers

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

All 28 suppliers
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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

28 suppliers in 8 countries

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Dichlorprop 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

When used as directed at 2.5 lb per acre controls Polygonum persicaria, Polygonum lapathifolium, Polygonum convolvulus and Spergula arvensis in addition to many of the weeds controlled by mecoprop.

Herbicide plant growth regulator (for) brush control on rangeland, rights-of-way, aquatic weeds. (It is used for) control of polygonum species, calium aparine (cleavers), chickweed, in cereals, pastures, turf, alone or mixed with other hormone type phenoxy herbicides (e.g.,MCPA).

Particularly effective for the control of ... Bilderdykia convolvulus. It also controls Galium aparine and Stellaria media but is not consistently effective against Polygonum aviculare.

Functional uses

  • Biocide

How it is made

Dichlorprop may be made by: (a) condensation of 2-chloropropionic acid with 2,4-dichlorophenol or (b) chlorination of 2-phenoxypropionic acid.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 607-045-00-0

United States

  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Section 4 test rule or order

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

Frequently asked questions

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

What is Dichlorprop?

2-(2,4-dichlorophenoxy)propanoic acid is an aromatic ether that is 2-hydroxypropanoic acid in which the hydroxy group at position 2 has been converted to its 2,4-dichlorophenyl ether. It is a dichlorobenzene, a monocarboxylic acid and an aromatic ether.

What is the CAS number of Dichlorprop?

The CAS registry number of Dichlorprop is 120-36-5.

What is the molecular formula and weight of Dichlorprop?

The molecular formula of Dichlorprop is C9H8Cl2O3 and its molar mass is 235.07 g/mol.

What is Dichlorprop used for?

When used as directed at 2.5 lb per acre controls Polygonum persicaria, Polygonum lapathifolium, Polygonum convolvulus and Spergula arvensis in addition to many of the weeds controlled by mecoprop. Herbicide plant growth regulator (for) brush control on rangeland, rights-of-way, aquatic weeds.

Is Dichlorprop hazardous?

Dichlorprop carries the GHS signal word "Danger". Main hazards: harmful if swallowed, harmful in contact with skin, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dichlorprop?

Dichlorprop 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 Dichlorprop?

CompoundList lists 28 suppliers of Dichlorprop in China, United States, Germany, Canada and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dichlorprop?

Suppliers quote Dichlorprop 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 Dichlorprop

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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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