Methacrylic acid

Modify Date: 2026-06-29 17:17:49

Methacrylic acid structure	Common Name	Methacrylic acid
	CAS Number	79-41-4	Molecular Weight	86.089
	Density	1.0±0.1 g/cm3	Boiling Point	160.5±0.0 °C at 760 mmHg
	Molecular Formula	C₄H₆O₂	Melting Point	16 °C
	MSDS	Chinese USA	Flash Point	76.7±0.0 °C
	Symbol	GHS05, GHS06	Signal Word	Danger

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	methacrylic acid
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.0±0.1 g/cm3
Boiling Point	160.5±0.0 °C at 760 mmHg
Melting Point	16 °C
Molecular Formula	C₄H₆O₂
Molecular Weight	86.089
Flash Point	76.7±0.0 °C
Exact Mass	86.036781
PSA	37.30000
LogP	0.83
Vapour density	>3 (vs air)
Vapour Pressure	1.2±0.6 mmHg at 25°C
Index of Refraction	1.430
InChIKey	CERQOIWHTDAKMF-UHFFFAOYSA-N
SMILES	C=C(C)C(=O)O
Stability	May be stabilized by the addition of MEHQ (Hydroquinone methyl ether, ca. 250 ppm) or hydroquinone. In the absence of a stabilizer this material will readily polymerize. Combustible. Incompatible with strong oxidizing agents, hydrochloric acid.
Water Solubility	9.7 g/100 mL (20 ºC)

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Methacrylic acid MSDS(Chinese)

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OZ2975000

CHEMICAL NAME :: Methacrylic acid

CAS REGISTRY NUMBER :: 79-41-4

BEILSTEIN REFERENCE NO. :: 1719937

LAST UPDATED :: 199712

DATA ITEMS CITED :: 34

MOLECULAR FORMULA :: C4-H6-O2

MOLECULAR WEIGHT :: 86.10

WISWESSER LINE NOTATION :: QVY1&U1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1060 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 :: Rodent - rat

DOSE/DURATION :: 1600 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 :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1250 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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 48 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 :: Rodent - mouse

DOSE/DURATION :: 1250 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 :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 95200 nL/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 - rabbit

DOSE/DURATION :: 1200 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 :: 500 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 - guinea pig

DOSE/DURATION :: 1 gm/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 :: 910 mg/kg/26W-I

TOXIC EFFECTS :: Behavioral - alteration of classical conditioning

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 221 mg/m3/24H/17W-C

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 221 mg/m3/24H/17W-C

TOXIC EFFECTS :: Behavioral - alteration of classical conditioning

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 910 mg/kg/26W-I

TOXIC EFFECTS :: Liver - liver function tests impaired Nutritional and Gross Metabolic - metabolic acidosis

MUTATION DATA

TYPE OF TEST :: DNA adduct

TEST SYSTEM :: Bacteria - Escherichia coli

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 89,95,1981 *** REVIEWS *** ACGIH TLV-TWA 70 mg/m3 (20 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW EVHPAZ EHP, Environmental Health Perspectives. (U.S. Government Printing Office, Supt of Documents, Washington, DC 20402) No.1- 1972- Volume(issue)/page/year: 11,141,1975 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-BELGIUM:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-DENMARK:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-FRANCE:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-GERMANY:TWA 50 ppm (210 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-RUSSIA:STEL 101 mg/m3;Skin JAN 1993 OEL-SWEDEN:TWA 20 ppm (70 mg/m3);STEL 30 ppm (100 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 20 ppm (70 mg/m3);STEL 40 ppm (140 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO METHACRYLIC ACID-air:10H TWA 20 ppm (Sk) REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M3304 No. of Facilities: 1529 (estimated) No. of Industries: 12 No. of Occupations: 31 No. of Employees: 18977 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M3304 No. of Facilities: 10110 (estimated) No. of Industries: 109 No. of Occupations: 75 No. of Employees: 145414 (estimated) No. of Female Employees: 46453 (estimated)

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol	GHS05, GHS06
Signal Word	Danger
Hazard Statements	H302 + H332-H311-H314-H335
Precautionary Statements	P261-P280-P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	C:Corrosive
Risk Phrases	R21/22;R35
Safety Phrases	S26-S36/37/39-S45
RIDADR	UN 2531 8/PG 2
WGK Germany	1
RTECS	OZ2975000
Packaging Group	II
Hazard Class	8
HS Code	2916130010

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 10
CAS#:78-85-3 Methylpropenal CAS#:6713-72-0 3,3,6,6-tetrame... CAS#:115-11-7 Isobutylene CAS#:557-93-7 2-Bromo-1-propene
CAS#:124-38-9 Carbon dioxide CAS#:97-65-4 Itaconic acid CAS#:498-24-8 Mesaconic acid CAS#:6236-10-8 (R)-(-)-citrama...
CAS#:498-23-7 Citraconic acid CAS#:67-64-1 Acetone
DownStream 10
CAS#:10535-52-1 (tetrahydropyra... CAS#:105040-99-1 [tert-butyl(dim... CAS#:106664-91-9 3-benzylsulfany... CAS#:557-34-6 Zinc Acetate
CAS#:272771-37-6 zinc methacryli... CAS#:4655-34-9 2-Propenoic aci... CAS#:5577-72-0 (Triethoxysilyl... CAS#:3978-58-3 3-[Dimethoxy(me...
CAS#:3934-23-4 1h,1h-perfluoro... CAS#:3253-41-6 2,2-bis[[(2-met...

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2916130010
Summary	HS: 2916130010. methacrylic acid. VAT:17.0%. tax rebate rate:13.0%. supervision conditions:ab(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tarrif:6.5%. general tariff:80.0%

This table lists relevant public references with title, journal and publication metadata for this compound.

Heparin molecularly imprinted surfaces for the attenuation of complement activation in blood.

Biomater. Sci. 3 , 1208-17, (2015)

Heparin-imprinted synthetic polymer surfaces with the ability to attenuate activation of both the complement and the coagulation system in whole blood were successfully produced. Imprinting was achiev...

Synthesis of a new molecularly imprinted polymer for sorption of the silver ions from geological and antiseptic samples for determination by flame atomic absorption spectrometry.

J. AOAC Int. 97(5) , 1434-8, (2015)

A new molecularly imprinted polymer (MIP) was synthesized using methacrylic acid (functional monomer), ethylene glycol dimethacrylate (crosslinker), 2,2'-azobisisobutironitril (initiator), silver (Ag)...

Magnetic high throughput screening system for the development of nano-sized molecularly imprinted polymers for controlled delivery of curcumin.

Analyst 140(9) , 3113-20, (2015)

Curcumin is a versatile anti-inflammatory and anti-cancer agent known for its low bioavailability, which could be improved by developing materials capable of binding and releasing drug in a controlled...

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Loctite3298

2-methylprop-2-enoic acid

FX668F

a-Methylacrylic Acid

Methacrylic acid

acidometacrilico

CH2=C(CH3)COOH

METAACRYLIC ACID

EINECS 201-204-4

2-methylpropenoic acid

2-Methylene propionic acid

2-methylacrylic acid

acidemethacrylique

(methyl)acrylic acid

GE110

methylcrotonic acid

MFCD00002651

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the CAS number of methacrylic acid?

A: CAS number of methacrylic acid is 79-41-4.

Q: What is the SMILES notation of methacrylic acid?

A: SMILES notation of methacrylic acid is C=C(C)C(=O)O.

Q: What is the InChIKey of methacrylic acid?

A: InChIKey of methacrylic acid is CERQOIWHTDAKMF-UHFFFAOYSA-N.

Q: How is the water solubility of methacrylic acid?

A: Water solubility of methacrylic acid: 9.7 g/100 mL (20 ºC).

Q: What is the molecular weight of methacrylic acid?

A: Molecular weight of methacrylic acid is 86.089.

Q: What is the molecular formula of methacrylic acid?

A: Molecular formula of methacrylic acid is C4H6O2.

Q: What is the polar surface area (PSA) of methacrylic acid?

A: Polar surface area (PSA) of methacrylic acid is 37.30000.

Q: What is the boiling point of methacrylic acid?

A: Boiling point of methacrylic acid is 160.5±0.0 °C at 760 mmHg.

Q: What is the melting point of methacrylic acid?

A: Melting point of methacrylic acid is 16 °C.

Q: What is the LogP of methacrylic acid?

A: LogP of methacrylic acid is 0.83.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

Henan Tianfu Chemical Co., Ltd.

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Methacrylic acid
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Methacrylic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Methacrylic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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Methacrylic acid

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Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Synthetic Route

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Synonyms

Methacrylic acid | FAQ

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.