MCPA

Modify Date: 2025-08-21 18:47:12

MCPA structure	Common Name	MCPA
	CAS Number	94-74-6	Molecular Weight	200.619
	Density	1.3±0.1 g/cm3	Boiling Point	327.0±27.0 °C at 760 mmHg
	Molecular Formula	C₉H₉ClO₃	Melting Point	114-118 °C(lit.)
	MSDS	Chinese USA	Flash Point	151.6±23.7 °C
	Symbol	GHS02, GHS07	Signal Word	Danger

Use of MCPA

MCPA is a phenoxy herbicide, and widely used to control annual and perennial broad leaved weeds, including poppy, thistles and docks, in crops such as cereals, rice, linseed, flax, grassland and turf[1][2].

Name	(4-chloro-2-methylphenoxy)acetic acid
Synonym	More Synonyms

Description	MCPA is a phenoxy herbicide, and widely used to control annual and perennial broad leaved weeds, including poppy, thistles and docks, in crops such as cereals, rice, linseed, flax, grassland and turf[1][2].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Munira S, et, al. Sorption and desorption of glyphosate, MCPA and tetracycline and their mixtures in soil as influenced by phosphate. J Environ Sci Health B. 2017 Dec 2;52(12):887-895. [2]. Kwiecien I, et, al. Biodegradable PBAT/PLA Blend with Bioactive MCPA-PHBV Conjugate Suppresses Weed Growth. Biomacromolecules. 2018 Feb 12;19(2):511-520.

Description

Related Catalog

Research Areas >> Others

Signaling Pathways >> Others >> Others

References

[1]. Munira S, et, al. Sorption and desorption of glyphosate, MCPA and tetracycline and their mixtures in soil as influenced by phosphate. J Environ Sci Health B. 2017 Dec 2;52(12):887-895.

[2]. Kwiecien I, et, al. Biodegradable PBAT/PLA Blend with Bioactive MCPA-PHBV Conjugate Suppresses Weed Growth. Biomacromolecules. 2018 Feb 12;19(2):511-520.

Density	1.3±0.1 g/cm3
Boiling Point	327.0±27.0 °C at 760 mmHg
Melting Point	114-118 °C(lit.)
Molecular Formula	C₉H₉ClO₃
Molecular Weight	200.619
Flash Point	151.6±23.7 °C
Exact Mass	200.024017
PSA	46.53000
LogP	2.49
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.552
InChIKey	WHKUVVPPKQRRBV-UHFFFAOYSA-N
SMILES	Cc1cc(Cl)ccc1OCC(=O)O

MCPA MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: AG1575000

CHEMICAL NAME :: Acetic acid, ((4-chloro-o-tolyl)oxy)-

CAS REGISTRY NUMBER :: 94-74-6

BEILSTEIN REFERENCE NO. :: 2051752

LAST UPDATED :: 199710

DATA ITEMS CITED :: 35

MOLECULAR FORMULA :: C9-H9-Cl-O3

MOLECULAR WEIGHT :: 200.63

WISWESSER LINE NOTATION :: QV1OR DG B1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 814 mg/kg

TOXIC EFFECTS :: Behavioral - coma Vascular - BP lowering not characterized in autonomic section

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 700 mg/kg

TOXIC EFFECTS :: Gastrointestinal - gastritis Behavioral - somnolence (general depressed activity) Liver - fatty liver degeneration

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1370 mg/m3/4H

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 439 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 28 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 28 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 700 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: 377 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 14400 mg/kg/90D-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Blood - changes in erythrocyte (RBC) count Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2129 mg/kg/78W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Blood - leukemia

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 2 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 3 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :: Sex chromosome loss and nondisjunction

TYPE OF TEST :: DNA inhibition

MUTATION DATA

TEST SYSTEM :: Rodent - hamster

DOSE/DURATION :: 900 mg/kg/9D (Intermittent)

REFERENCE :: CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House, Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980- Volume(issue)/page/year: 5,703,1984 *** REVIEWS *** IARC Cancer Review:Human Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 41,357,1986 IARC Cancer Review:Animal No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 30,255,1983 TOXICOLOGY REVIEW DTTIAF Deutsche Tieraerztliche Wochenschrift. (Hanover, Fed. Rep. Ger.) V.1-77, 1893-1970. Volume(issue)/page/year: 80,485,1973 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989

Symbol	GHS02, GHS07
Signal Word	Danger
Hazard Statements	H225-H302-H312-H319-H332
Precautionary Statements	P210-P280-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xn:Harmful;
Risk Phrases	R22;R38;R41
Safety Phrases	S26-S37-S39-S36-S16
RIDADR	UN 2765
WGK Germany	2
RTECS	AG1575000
HS Code	2918990022

Precursor 10
CAS#:1878-49-5 (2-Methylphenox... CAS#:104-94-9 p-Anisidine CAS#:625-36-5 3-Chloropropano... CAS#:1570-64-5 4-Chloro-2-meth...
CAS#:79-11-8 Chloroacetic acid CAS#:2698-38-6 Acetic acid,2-(... CAS#:7399-57-7 2-(4-chloro-2-m... CAS#:52106-86-2 Sodium 4-chloro...
CAS#:105-36-2 ethyl 2-bromoacetate CAS#:7553-56-2 molecular iodine
DownStream 9
CAS#:95-71-6 Pyrolin CAS#:553-97-9 2-Methylcyclohe... CAS#:95-48-7 o-cresol CAS#:488-17-5 3-Methylcatechol
CAS#:2698-38-6 Acetic acid,2-(... CAS#:1878-49-5 (2-Methylphenox... CAS#:1570-65-6 4,6-Dichloro-o-... CAS#:1570-64-5 4-Chloro-2-meth...
CAS#:57117-31-4 2,3,4,7,8-Penta...

HS Code	2918990022
Summary	2918990022 2-(4-chloro-2-methylphenoxy)acetic acid。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:30.0%

Quantitative structure-activity relationship and complex network approach to monoamine oxidase A and B inhibitors.

J. Med. Chem. 51 , 6740-51, (2008)

The work provides a new model for the prediction of the MAO-A and -B inhibitor activity by the use of combined complex networks and QSAR methodologies. On the basis of the obtained model, we prepared ...

Monetite granules versus particulate autologous bone in bone regeneration.

Ann. Anat. 200 , 126-33, (2015)

The aim of this study was to test bone tissue response to monetite granules in comparison with intramembranous autologous bone graft in a rabbit calvaria critical size defect model.Novel monetite gran...

The role of microbial adaptation and biodegradable dissolved organic carbon on the attenuation of trace organic chemicals during groundwater recharge.

Sci. Total Environ. 437 , 137-44, (2012)

It is widely recognized that efficient biological attenuation of bulk organic matter and trace organic chemicals (TOrC) can occur in managed aquifer recharge (MAR) systems receiving reclaimed water. T...

Name: Luminescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: mu-type opioid receptor isoform MOR-1 [Homo sapiens]
External Id: OPRM1-OPRD1_AG_LUMI_1536_1X%ACT PRUN

Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN

Name: Cytochrome P450 Family 1 Subfamily A Member 2 (CYP1A2) small molecule antagonists: lu...
Source: 824
External Id: CYP273

Name: Primary Screen Inhibitors of CD40 Signaling in BL2 Cells Measured in Cell-Based Syste...
Source: Broad Institute
Target: N/A
External Id: 7124-01_Inhibitor_SinglePoint_HTS_Activity

Name: Fluorescence-based cell-based primary high throughput screening assay to identify pos...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_PAM_FLUO8_1536_1X%ACT PRUN

Name: Fluorescence polarization-based biochemical high throughput primary assay to identify...
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=Sialate O-acetylesterase; AltName: Full=H-Lse; AltName: Full=Sialic acid-specific 9-O-acetylesterase; Flags: Precursor [Homo sapiens]
External Id: SIAE_INH_FP_1536_1X%INH PRUN

Name: p53 small molecule agonists, cell-based qHTS assay: qHTS cell viability counter scree...
Source: 824
Target: N/A
External Id: P53600

Name: p53 small molecule agonists, cell-based qHTS assay with rat liver microsomes: qHTS ce...
Source: 824
Target: N/A
External Id: P53MS958

Name: p53 small molecule agonists, cell-based qHTS assay with rat liver microsomes: Summary
Source: 824
External Id: P53MS482

Name: p53 small molecule agonists, cell-based qHTS assay
Source: 824
External Id: P53344

Total 338, Current Page 1 of 34

2M-4Ch

MCPA

metaxon

Weed-rhap

Chiptox

Agroxon

Zelan

(4-Chloro-2-methylphenoxy)acetic acid

cornox

EINECS 202-360-6

4-Chloro-o-tolyloxyacetic acid

phenoxic acid

MFCD00004306

Agroxone

2M-4Kh

MCP

2-METHYL-4-CHLOROPHENOXYACETIC ACID

Basagran-M

Bordermaster

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China
Product Name: (4-chloro-2-methylphenoxy)acetic acid
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MCPA

Use of MCPA

Names

MCPA Biological Activity

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

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MCPABioassay

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