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Herbicides

2-(4-Chlorophenoxy)propionic acid

Also known as 2-(4-Chlorophenoxy)propanoic acid, 2-(p-Chlorophenoxy)propionic acid, 2-p-CPP

CAS 3307-39-9Formula C9H9ClO3Molar mass 200.62 g/molEC 221-991-8
GHS signal word: Danger. Pictograms: Acute toxicity (severe) 7 suppliers listed
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2-(4-Chlorophenoxy)propionic acid chemical structure, C9H9ClO3, CAS 3307-39-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3307-39-9
Formula
C9H9ClO3
Molar mass
200.62 g/mol
EC number
221-991-8
HS code
291899
Category
Herbicides

What is 2-(4-Chlorophenoxy)propionic acid?

Plain description, key identifiers and synonyms

CPP is a monocarboxylic acid. It has a role as a phenoxy herbicide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(4-chlorophenoxy)propanoic acid
CAS number
3307-39-9 CAS number cross-checkedOther or deprecated CAS: 20421-33-4
EC number
221-991-8
Molecular formula
C9H9ClO3
UNII
T7VVY85E2H
MDL number
MFCD00002647
InChIKey
DKHJWWRYTONYHB-UHFFFAOYSA-N
InChI
InChI=1S/C9H9ClO3/c1-6(9(11)12)13-8-4-2-7(10)3-5-8/h2-6H,1H3,(H,11,12)
SMILES (canonical and isomeric)
CC(C(=O)O)OC1=CC=C(C=C1)Cl

Synonyms

  • 2-(4-Chlorophenoxy)propanoic acid
  • 2-(p-Chlorophenoxy)propionic acid
  • 2-p-CPP
  • Propanoic acid, 2-(4-chlorophenoxy)-
  • 2-(4-chlorophenoxy) propionic acid
  • 2-(4-CPP)
  • S-(-)CPP
  • Propionic acid, 2-(p-chlorophenoxy)-
  • alpha-(4-Chlorophenoxy)propionic acid
  • (+/-)-2-(4-Chlorophenoxy)propionic acid
  • 2-(4-Chlorophenoxy)propanoicacid
  • (S)-4-Chlorophenoxypropanoic acid
  • Propionic acid, 2-(p-chlorophenox
  • dl-2-(4-chlorophenoxy)propionic acid
  • Propanoic acid, 2-(4-chlorophenoxy)
  • (rs)-2-(4-chlorophenoxy)propionic acid
  • (+/-)-2-(p-Chlorophenoxy)propionic acid
  • 2-(p-CHLOROPHENOXY)-PROPIONIC ACID
  • 2-(4-Chlorophenoxy) propionic acid 100 |Ig/mL in Acetonitrile
  • 2-(4-Chlorophenoxy) propionic acid 100 microg/mL in Acetonitrile
  • 2-(4-Chlorophenoxy)propanoic acid Solution in Acetonitrile, 100ug/mL

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
200.62 g/molcalc.
Exact mass
200.024 Dacalc.
LogP (octanol/water)
2.19calc.
Topological polar surface area
46.53 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
13calc.
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
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H301Toxic if swallowed.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P405Store locked up.
  • 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-Chlorophenoxy)propionic acid suppliers

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

All 7 suppliers
7 of 7 offers

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

7 suppliers in 6 countries

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2-(4-Chlorophenoxy)propionic acid price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • herbicide
  • pesticide
  • phenoxy herbicide

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-Chlorophenoxy)propionic acid 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-Chlorophenoxy)propionic acid 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-Chlorophenoxy)propionic acid, based on the data on this page

What is 2-(4-Chlorophenoxy)propionic acid?

CPP is a monocarboxylic acid. It has a role as a phenoxy herbicide.

What is the CAS number of 2-(4-Chlorophenoxy)propionic acid?

The CAS registry number of 2-(4-Chlorophenoxy)propionic acid is 3307-39-9. Other or deprecated CAS numbers: 20421-33-4.

What is the molecular formula and weight of 2-(4-Chlorophenoxy)propionic acid?

The molecular formula of 2-(4-Chlorophenoxy)propionic acid is C9H9ClO3 and its molar mass is 200.62 g/mol.

What is 2-(4-Chlorophenoxy)propionic acid used for?

Known uses and roles of 2-(4-Chlorophenoxy)propionic acid include herbicides in agriculture and crop protection, herbicide, pesticide and phenoxy herbicide.

Is 2-(4-Chlorophenoxy)propionic acid hazardous?

2-(4-Chlorophenoxy)propionic acid carries the GHS signal word "Danger". Main hazards: toxic if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-(4-Chlorophenoxy)propionic acid?

2-(4-Chlorophenoxy)propionic acid 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-Chlorophenoxy)propionic acid?

CompoundList lists 7 suppliers of 2-(4-Chlorophenoxy)propionic acid in United States, Canada, China, Germany and 2 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 2-(4-Chlorophenoxy)propionic acid?

Suppliers quote 2-(4-Chlorophenoxy)propionic acid 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-Chlorophenoxy)propionic acid

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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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