ChemicalBook >> CAS DataBase List >>4-Chlorophenoxyacetic acid

4-Chlorophenoxyacetic acid

CAS No.
122-88-3
Chemical Name:
4-Chlorophenoxyacetic acid
Synonyms
CPA;4-CP;bi12;4-CPA;IUPAC;4CPAe;nsc8769;nsc-8769;Sure-Set;tomatofix
CBNumber:
CB7189313
Molecular Formula:
C8H7ClO3
Molecular Weight:
186.59
MDL Number:
MFCD00004305
MOL File:
122-88-3.mol
MSDS File:
SDS
Last updated:2026-04-10 10:27:26
Product description Number Pack Size Price
4-Chlorophenoxyacetic acid ≥98.0% (T) 25890 250g $91.8
4-Chlorophenoxyacetic acid ≥98.0% (T) 25890 1kg $326
4-Chlorophenoxyacetic Acid C0250 25G $32
4-Chlorophenoxyacetic Acid C0250 500G $179
4-Chlorophenoxyacetic acid BioReagent, plant cell culture tested, crystalline C0413 25g $57.3
More product size

4-Chlorophenoxyacetic acid Properties

Melting point 157-159 °C
Boiling point 266.91°C (rough estimate)
Density 1.3245 (rough estimate)
refractive index 1.5250 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility 957mg/l
form crystalline
pka pK1: 3.10 (25°C)
color White to light beige
Water Solubility 848mg/L(25 ºC)
BRN 1211804
Henry's Law Constant 1.0×105 mol/(m3Pa) at 25℃, Ebert et al. (2023)
Major Application agriculture
environmental
InChI 1S/C8H7ClO3/c9-6-1-3-7(4-2-6)12-5-8(10)11/h1-4H,5H2,(H,10,11)
InChIKey SODPIMGUZLOIPE-UHFFFAOYSA-N
SMILES OC(=O)COc1ccc(Cl)cc1
LogP 2.250
CAS DataBase Reference 122-88-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 4EMM3U5P3K
NIST Chemistry Reference 4-Chlorophenoxyacetic acid(122-88-3)
EPA Substance Registry System 4-Chlorophenoxyacetic acid (122-88-3)
UNSPSC Code 41116107
NACRES NA.72

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312a-P330-P501a
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn,Xi
Risk Statements  22-R22
Safety Statements  22-24/25
RIDADR  2811
WGK Germany  1
RTECS  AG0175000
21
TSCA  TSCA listed
HazardClass  IRRITANT
HS Code  29189090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Hazardous Substances Data 122-88-3(Hazardous Substances Data)
Toxicity LD50 oral in rat: 850mg/kg
NFPA 704
0
1 0

4-Chlorophenoxyacetic acid price More Price(36)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 25890 4-Chlorophenoxyacetic acid ≥98.0% (T) 122-88-3 250g $91.8 2026-03-19 Buy
Sigma-Aldrich 25890 4-Chlorophenoxyacetic acid ≥98.0% (T) 122-88-3 1kg $326 2026-03-19 Buy
TCI Chemical C0250 4-Chlorophenoxyacetic Acid 122-88-3 25G $32 2026-03-19 Buy
TCI Chemical C0250 4-Chlorophenoxyacetic Acid 122-88-3 500G $179 2026-03-19 Buy
Sigma-Aldrich C0413 4-Chlorophenoxyacetic acid BioReagent, plant cell culture tested, crystalline 122-88-3 25g $57.3 2026-03-19 Buy
Product number Packaging Price Buy
25890 250g $91.8 Buy
25890 1kg $326 Buy
C0250 25G $32 Buy
C0250 500G $179 Buy
C0413 25g $57.3 Buy

4-Chlorophenoxyacetic acid Chemical Properties,Uses,Production

Chemical Properties

white to light beige powder

Uses

2-(4-Chlorophenoxy)acetic Acid is used in the synthesis of a new class of hypoxia-inducible factor-1 inhibitors.

Uses

4-chlorophenoxy acetic acid (4-CPA), a chlorine derivative of phenoxyacetic acid (PA), is a plant growth regulator used as a herbicide.

Definition

ChEBI: A chlorophenoxyacetic acid that is phenoxyacetic acid carrying a chloro substituent at position 4.

General Description

4-Chlorophenoxyacetic acid is a herbicide. Degradation of 4-chlorophenoxyacetic acid in aqueous medium by advanced electrochemical oxidation processes, using an undivided cell containing a Pt anode has been reported.

Hazard

Moderately toxic; mutagen.

Biochem/physiol Actions

4-Chlorophenoxyacetic acid is a synthetic auxin, that is used to induce parthenocarpic ovary growth on flowers of wild type plants.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits toxic fumes of Cl-.

Purification Methods

Crystallise the acid from EtOH. It is a plant growth substance and a herbicide. [Beilstein 6 IV 845.]

Global( 498)Suppliers
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Hebei Chuanghai Biotechnology Co., Ltd
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Shanghai UCHEM Inc.
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Hefei TNJ Chemical Industry Co.,Ltd.
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ANHUI WITOP BIOTECH CO., LTD
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View Lastest Price from 4-Chlorophenoxyacetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Chlorophenoxyacetic acid pictures 2026-04-14 4-Chlorophenoxyacetic acid
122-88-3
US $48.00 / kg 1kg 0.99 100kg Shanghai UCHEM Inc.
4-Chlorophenoxyacetic acid pictures 2026-04-14 4-Chlorophenoxyacetic acid
122-88-3
US $0.00 / KG 1KG 98.0% 1000kg/month WUHAN FORTUNA CHEMICAL CO., LTD
4-Chlorophenoxyacetic acid pictures 2026-03-20 4-Chlorophenoxyacetic acid
122-88-3
US $10.00 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
2-(4-Chloro-phenoxy)acetic acid RARECHEM AL BO 0389 P-CHLOROPHENOXYACETIC ACID p-Monochlorophenoxy acetic acid (2-chlorophenoxy)ethanoicacid kyselina4-chlorfenoxyoctova Marks 4-cpa marks4-cpa nsc8769 nsc-8769 para-Chlorophenoxyacetic acid parachlorophenoxyaceticacid p-chlorophenoxyacetate Sure-Set Tomato fix Tomato fix concentrate Tomato hold tomatofix tomatofixconcentrate tomatohold Tomatotone 4-CPA 4-CHLOROPHENOXYACETIC ACID AKOS BBS-00003726 ASISCHEM P52439 CHLOROPHENOXYACETIC ACID CPA IFLAB-BB F0777-0788 FRUITONE(R) FRUITONE(TM) IUPAC 'LGC' (1301) 4-Chlorophenoxy acetic acid solution 4-Chlorophenoxyacetic acid >=98.0% (T) (4-chlorophenoxy)-aceticaci (p-chlorophenoxy)-aceticaci 4-chlorophenoxyacetic 4-CP 4-cpa(4-chlorophenoxyaceticacid) 4CPAe Acetic acid, (4-chlorophenoxy)- Acetic acid, (p-chlorophenoxy)- aceticacid,(4-chlorophenoxy)- bi12 Kyselina 4-chlorfenoxyoctova 2-(4-chlorocyclohexyl)oxyacetate 4-CHLOROPHENOXYACETIC ACID PESTANAL,250 P-CHLOROPHENOXY ACETIC ACID, 1GM, NEAT P-CHLOROPHENOXYACETIC ACID PLANT CELLCUL TURE TESTE 4-ChlorophenoxyaceticAcid(4-Cpa) 4-cpa(bsi,e-iso) MONOCHLOROPHENOXYACETICACID 4-CHLOROPHENOXYACETATE BRAKENTROLE 4-Chlorophenoxy acetic acidTomatotone 4-CHLOROPHENOXYACETIC ACID, 98+% 53) PARA CHLORO PHENOXY ACETIC ACID 4-Chlorophenoxyacetic acid, 4-CPA, CPA