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MCPB

MCPB Structure
MCPB structure
CAS No.
94-81-5
Chemical Name:
MCPB
Synonyms
CMPB;Bexane;4-butyric Acid;MCPB;4MCPB;2m4khm;2M-4XM;Bexone;Trotox;u46mcpb
CBNumber:
CB7123863
Molecular Formula:
C11H13ClO3
Molecular Weight:
228.67
MDL Number:
MFCD00002820
MOL File:
94-81-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 02:49:00
Product description Number Pack Size Price
MCPB PESTANAL 36145 100mg $47.6
4-(4-Chloro-2-methylphenoxy)butanoic acid 97% CD12003189 25g $485
4-(4-Chloro-2-methylphenoxy)butanoic acid 95 CA001553 50mg $15.24
4-(4-Chloro-2-methylphenoxy)butanoic acid 95 CA001553 100mg $20.32
4-(4-Chloro-2-methylphenoxy)butanoic acid 95 CA001553 250mg $31.75
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MCPB Properties

Melting point 101-102℃ (ligroine )
Boiling point 327.31°C (rough estimate)
Density 1.2076 (rough estimate)
refractive index 1.4530 (estimate)
storage temp. 0-6°C
pka 4.58±0.10(Predicted)
Water Solubility 44mg/L(room temperature)
BRN 2215202
Henry's Law Constant 3.6×103 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
Major Application agriculture
environmental
InChI InChI=1S/C11H13ClO3/c1-8-7-9(12)4-5-10(8)15-6-2-3-11(13)14/h4-5,7H,2-3,6H2,1H3,(H,13,14)
InChIKey LLWADFLAOKUBDR-UHFFFAOYSA-N
SMILES C(O)(=O)CCCOC1=CC=C(Cl)C=C1C
EWG's Food Scores 1
FDA UNII OA1Z4N1842
Pesticides Freedom of Information Act (FOIA) MCPB
EPA Substance Registry System MCPB (94-81-5)
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Environment (GHS09)
GHS07,GHS09
Signal word  Warning
Hazard statements  H302-H410
Precautionary statements  P273-P301+P312+P330
PPE Eyeshields, Gloves
Hazard Codes  N
Risk Statements  50/53
Safety Statements  60-61
RIDADR  UN3077 9/PG 3
WGK Germany  2
RTECS  ES8575000
HS Code  29189900
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Acute 1
Aquatic Chronic 1
Hazardous Substances Data 94-81-5(Hazardous Substances Data)
Toxicity LD50 oral in rat: 680mg/kg

MCPB price More Price(14)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 36145 MCPB PESTANAL 94-81-5 100mg $47.6 2022-05-15 Buy
Crysdot CD12003189 4-(4-Chloro-2-methylphenoxy)butanoic acid 97% 94-81-5 25g $485 2026-05-27 Buy
Atlantic Research Chemicals CA001553 4-(4-Chloro-2-methylphenoxy)butanoic acid 95 94-81-5 50mg $15.24 2026-05-23 Buy
Atlantic Research Chemicals CA001553 4-(4-Chloro-2-methylphenoxy)butanoic acid 95 94-81-5 100mg $20.32 2026-05-23 Buy
Atlantic Research Chemicals CA001553 4-(4-Chloro-2-methylphenoxy)butanoic acid 95 94-81-5 250mg $31.75 2026-05-23 Buy
Product number Packaging Price Buy
36145 100mg $47.6 Buy
CD12003189 25g $485 Buy
CA001553 50mg $15.24 Buy
CA001553 100mg $20.32 Buy
CA001553 250mg $31.75 Buy

MCPB Chemical Properties,Uses,Production

Chemical Properties

Colorless crystal; melts at 100 °C (212 °F);practically insoluble in water (44 mg/L at25 °C/77 °F); readily dissolves in most organicsolvents.

Uses

MCPB is used for research regarding herbicides to control weed in crop field.

Uses

Herbicide.

Definition

ChEBI: A monocarboxylic acid that is butyric acid substituted by a 2-methyl-4-chlorophenoxy group at position 4.

Hazard

Toxic by ingestion.

Health Hazard

MCPB is structurally similar to 2,4-DB,except one methyl group substituting a Clatom in the ring. Toxic properties and thesymptoms are similar to 2,4-DB. It is mod-erately toxic by ingestion and possibly otherroutes of exposure. Skin contact can causeirritation.
LD50 oral (rat): 680 mg/kg
LD50 oral (mouse): 800 mg/kg.

Agricultural Uses

Herbicide: A metabolite of MCPA (see above). MCPB is a phenoxy herbicide produced as a sodium salt and an acid. Herbicide registered for use on peas prior to flowering. There are no residential uses of MCBP. Target organisms: post-emergence control of Canadian thistle, buttercup, mustard, purslane, ragweed, common lambsquarters, pigweed, smartweed, sowthistle, morning glory and other broad leaf weeds[83] .

Trade name

2 M-4Kh-M; 2M4KhM; 2 M-4XM; 4MCPB; BEXANE; BEXONE; U46 MCPB; LEGUMEX; PDQ; THITROL; TRIFOLEX; TRITROL; TROTOX

MCPB synthesis

1570-64-5
94-81-5
Synthesis of MCPB from 4-Chloro-2-methylphenol

MCPB Preparation Products And Raw materials

Raw materials

Benzene, 1-(3-bromopropoxy)-4-chloro-2-methyl- Sodium 4-chloro-2-methylphenolate 4-Chloro-2-methylphenol Carbon dioxide o-Cresol
Gamma Butyrolactone Potassium carbonate

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Preparation Products

4-(4-CHLORO-2-METHYLPHENOXY)BUTYRYL CHLORIDE

MCPB Suppliers

Global( 91)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Dideu Medichem Co. Ltd 		+8617392709771 1097@dideu.com China 3991 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49979 58
career henan chemical co 		+86-0371-86658258 +8613203830695 factory@coreychem.com China 29792 58
Mainchem Co., Ltd. +86-0592-6210733 sale@mainchem.com China 32343 55
Jinan Tai Hang Seng Material Technology Co., LTD 17852565707 157163860@qq.com China 14 58
J & K SCIENTIFIC LTD. 18210857532; 18210857532 jkinfo@jkchemical.com China 96815 76
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11705 57
Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10266 58
Clearsynth Labs Limited +91-22-26355700 info@clearsynth.com India 9679 58
Shanghai JONLN Reagent Co., Ltd. 400-0066400 13621662912 422131432@qq.com China 9979 55
Supplier Advantage
Shaanxi Dideu Medichem Co. Ltd 		58
CONIER CHEM AND PHARMA LIMITED 		58
career henan chemical co 		58
Mainchem Co., Ltd. 55
Jinan Tai Hang Seng Material Technology Co., LTD 58
J & K SCIENTIFIC LTD. 76
Sichuan Kulinan Technology Co., Ltd 57
Hangzhou Sage Chemical Co., Ltd. 58
Clearsynth Labs Limited 58
Shanghai JONLN Reagent Co., Ltd. 55

View Lastest Price from MCPB manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
MCPB pictures 2025-12-24 MCPB
94-81-5
 1KG 99.0% 1000KG Shaanxi Dideu Medichem Co. Ltd
MCPB pictures 2020-01-10 MCPB
94-81-5
 $1.00 1g 99.0% 100kg Career Henan Chemical Co
  • MCPB pictures
  • MCPB
    94-81-5
  • 99.0%
  • Shaanxi Dideu Medichem Co. Ltd
  • MCPB pictures
  • MCPB
    94-81-5
  • $1.00
  • 99.0%
  • Career Henan Chemical Co

MCPB Spectrum

MCPB(94-81-5)MSMCPB(94-81-5)1HNMRMCPB(94-81-5)13CNMRMCPB(94-81-5)IR1MCPB(94-81-5)IR2

94-81-5(MCPB)Related Search:

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(4-chloro-o-tolyloxy)butyricacid [(4-Chloro-o-tolyl)oxy]butyric acid 2M 4KhM u46mcpb 2,4-MCPB 4-(2-METHYL-4-CHLOROPHENOXY)-BUTYRIC ACID 4-(4-CHLORO-2-METHYLPHENOXY)BUTANOIC ACID 4-(4-CHLORO-2-METHYLPHENOXY)BUTYRIC ACID 4-((4-Chloro-o-tolyl)oxy)butyric acid MCPB 'LGC' (1308) CANTROL TROPOTOX(R) THISTROL(R) MCPB PESTANAL MCPB, 100MG, NEAT 4-(4-CHLORO-2-METHYLPHENOXY)BUTYRIC ACID 99% MCPB (ISO) 4-(4-chloro-o-tolyloxy) butyric acid 4-(4-Chloro-2-methylphenoxy)butyric acid, 4-(4-Chloro-o-tolyloxy)butyric acid MCPB 100mg [94-81-5] NSC 102796 mcpb (bsi,iso,wssa,jmaf) 2-(4-CHLORO-2-METHYLPHENOXY)-BUTYRICACID 2m4khm 2m-4kh-m 2M-4XM 2-methyl-4-chlorophenoxybutyricacid 2-methyl-4-chlorophenoxygamma-butyricacid 3-Phenoxybutyric acid 4-((4-chloro-o-tolyl)oxy)-butyricaci 4-(2-Methyl-4-chlorphenoxy)-buttersaeure 4-(4-Chlor-2-methyl-phenoxy)-buttersaeure 4-(4-chlor-2-methylphenoxy)-buttersaeure 4-(4-chlor-2-methylphenoxy)-buttersaeure[german] 4-(4-Chloro-2-methylphenoxy)butanoate 4-(4-chloro-2-methylphenoxy)-butanoicaci 4-(MCB) 4-chloro-2-methylphenoxybutyricacid 4MCPB acide(4-chloro2-methyl4-phenoxy)butanoique Belmac straight Bexone Butanoic acid, 4-(4-chloro-2-methylphenoxy)- butryicacid. Butyric acid, 4-[(4-chloro-o-tolyl)oxy]- Fisons 18-15, MCPB gamma-(2-Methyl-4-chlorophenoxy)butyric acid gamma-(4-Chloro-2-methylphenoxy)butyric acid gamma-(4-chloro-2-methylphenoxy)butyricacid gamma-2-methyl-4-chlorophenoxybutyricacid gamma-MCPB Kyselina 4-(4-chlor-2-methylfenoxy)maselna kyselina4-(4-chlor-2-methylfenoxy)maselna MB 3046 mcpb(presentasisomerspecific) MCPBacid MCP-Butyric Thistrol