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General Information
- General Information
  - General Information Data Description
    - AJCSD_ID C004-752-12A CAS RN 97-88-1
      
      Chemical Substance Name n-Butyl methacrylate
      
      Molecular Formula C8H14O2
      
      Molecular Weight 142
      
      SMILES O=C(OCCCC)C(C)=C
      
      Structure
- Synonym
  - Synonym Data Description
    - Synonym 2-Methyl butylacrylate
      
      2-Propenoic acid, 2-methyl-, butyl ester
      
      Butyl 2-methacrylate
      
      butyl methacrylate
      
      Methacrylic acid, butyl ester

Laws and Regulations

Japan

Act on the Evaluation of Chemical Substances and Regulation of Their Manufacture, etc. (Chemical Substances Control Law ; CSCL)

Japan CSCL: Existing Chemical Substances Data Description Definition of the terms of Section 6 [PDF] Definition of the terms of Section 7 [PDF] Import Clearance Procedures[PDF] Notification of the Manufacturing Amount, etc[PDF]

MITI Number	2-1039	Category	Section 2
Chemical Substance Name	Alkyl(C=2-20) methacrylate
Remarks	-
Details	to J-CHECK
Remarks to Existing Chemical Substances of Industrial Safety and Health Act	Chemicals have been notified in accordance with the provisions of Chemical Substances Control Law by June 29, 1979
Details to Existing Chemical Substances of Industrial Safety and Health Act	to MHLW site (in Japanese)

Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion of Improvements to the Management Thereof(PRTR-SDS Law)
- Japan: PRTR-SDS Law (until March 2023) Data Description Outline PRTR Law (METI site) Analysis of PRTR data
  - Classification I Cabinet Order Number
    1-419
    
    Cabinet Order Name n-Butyl methacrylate
    
    Remarks -
    
    Basis of selection Hazard Data (in Japanese)
- Japan: PRTR-SDS Law (from April 2023) Data Description Outline PRTR Law (METI site)
  - JPSN(Japan PRTR-SDS Number)
    419
    Classification II Cabinet Order Number 2-121
    
    Cabinet Order Name Butyl methacrylate
    
    Remarks -
    
    Basis of selection Hazard Data (in Japanese)

Industrial Safety and Health Act (ISHA)

Japan ISHA: Chemical Substances Requiring Labeling and Delivery of Documents, etc. Data Description GHS compatible model label creation method (MH LW site : in Japanese) Risk assessment implementation support tool (MHLW site : in Japanese) Target substances list (MHLW site: in Japanese) Responsibilities of Business Operators (JNIOSH site: in Japanese)

Cabinet Order Number	Attached table 2-1996 of Ordinance	Implementation	Effective April 1, 2026
Cabinet Order Name	Butyl methacrylate
Range of Application for Label (weight%)	>=1
Range of Application for SDS (weight%)	>=1
Notes	Changed on April 1, 2027: Range of application for Label/SDS: >=1/ >=0.1 (weight%)

Japan ISHA: Chemical substances that cause skin disorders, etc. and other chemical substances that must be handled with impermeable protective equipment etc. based on special chemical regulations. Data Description Target substances list, etc.(MHLW site: in japanese) Responsibilities of Business Operators (JNIOSH site: in Japanese)
- Substance Name n-Butyl methacrylate
  
  Classification of Target Substances Skin Irritating Hazardous Substances Cutoff value(weight %) 1
  
  Implementation 2024/04/01
  
  Details to the GHS Classification

Japan ISHA: Dangerous Substances Data Description

Category	Inflammable Substances	Cabinet Order Number	4
Cabinet Order Name	Kerosene, light oil, turpentine oil, isopenthyl alcohol (synonym: isoamyl alcohol), acetic acid, and other substances having a flash point of 30 degrees Celsius or higher to lower than 65 degrees Celsius

Air Pollution Control Act

Japan Air Pollution Control Law Data Description Air & Transportation (MOE site)

Classification	Volatile Organic Compounds (VOC)	Cabinet Order Number	Article 2-4 of Act
Cabinet Order Name	Any organic compound (excluding substances specified by a Cabinet Order as not being sources from which suspended particulate matter or oxidants are generated) that is in a gaseous state at the time of its emission or dispersal into the atmosphere.
VOC Emission Inventory Substance Code	22-08-01
VOC Emission Inventory Substance Name	Butyl methacrylates

Food Sanitation Act

Food Sanitation Act: Table 1 (1) in Appended table 1 of Specifications and Standards Notification; Base polymers (Plastics) Data Description The positive list system for food utensils, containers and packaging (MHLW)

Category	20. Cross-linking polyester
Number Name	1. Copolymer of one or more acids(A.)and one or more alcohols(B.) and/or epoxides(C.), cured with cross-linking agents(D.); D. Cross-linking agent; 25)butyl methacrylate
Food category (Ac\|Fa\|Mi\|Al\|Ot)	○\|○\|○\|○\|○	Max. Temp./Synth. Resin Gr.	III/1
Requirements	The sum of hydroxy group and epoxy group (excluding cross-linkers) to 1 mol of the carboxy group: Not more than 3 mol: When used in UCP for milk/milk product or alcoholic beverage, the maximum temperature: I.

Food Sanitation Act: Table 1 (2) in Appended table 1 of Specifications and Standards Notification; Base polymers (Coatings) Data Description The positive list system for food utensils, containers and packaging (MHLW)

Category	1. Acrylic polymer
Number Name	10. Copolymer composed of following two or more monomers; 12)butyl methacrylate
Food category (Ac\|Fa\|Mi\|Al\|Ot)	○\|○\|○\|○\|○	Max. Temp./Synth. Resin Gr.	III/1,3

Category	8. Polyester
Number Name	1. Copolymer composed of one or more acids(A.) and one or more alcohols(B.), or modified with modifiers(C.); C. Modifier; 23)butyl methacrylate
Food category (Ac\|Fa\|Mi\|Al\|Ot)	○\|○\|○\|○\|○	Max. Temp./Synth. Resin Gr.	III/1

Category	18. Cross-linking agent for coating
Number Name	64. butyl methacrylate
Food category (Ac\|Fa\|Mi\|Al\|Ot)	○\|○\|○\|○\|○	Max. Temp./Synth. Resin Gr.	III/1

Food Sanitation Act: Table 1 (3) in Appended table 1 of Specifications and Standards Notification; Base polymers (Trace amount monomer) Data Description The positive list system for food utensils, containers and packaging (MHLW)
- Number Name 5. Nonaromatic organic acid; 85)butyl methacrylate

Food Sanitation Act: Table 1 in Appended table 1 of Revised Positive List of Food Apparatus and Containers, Packaging (Base materials)(From June 1, 2025) Data Description Revised Positive List of Food Apparatus and Containers, Packaging (CAA)

Substance Code	03-528	Polymer group	1
Base Materials	Cross-linked polymer mainly composed of ester bonds
Classification (Type, processing, etc.)	essential monomer ; cross-linking agent
Name	butyl methacrylate
Requirements	The sum of essential monomers: Not less than 50% of the polymer components

Substance Code	10-762	Polymer group	1
Base Materials	Polymer with ion exchange ability and/or adsorption ability
Classification (Type, processing, etc.)	optional substance
Name	butyl methacrylate
Requirements	Molecular weight of the part composed only of optional substance: Less than 1,000

Substance Code	13-726	Polymer group	2
Base Materials	Polymer composed of alkenes as the main monomer
Classification (Type, processing, etc.)	optional substance
Name	butyl methacrylate
Requirements	Molecular weight of the part composed only of the optional substances: Less than 1,000 (excluding ethyleneglycol condensate parts with the Mw ≥1000)

Substance Code	15-736	Polymer group	2 or 3
Base Materials	Polymer composed of aromatic hydrocarbons as the main monomer
Classification (Type, processing, etc.)	optional substance
Name	butyl methacrylate
Requirements	Molecular weight of the part composed only of optional substance: Less than 1,000

Substance Code	16-149	Polymer group	3
Base Materials	Polymer composed of acrylic acids as the main monomer
Classification (Type, processing, etc.)	essential monomer
Name	butyl methacrylate
Requirements	The sum of essential monomers: Not less than 50% of the polymer components

Substance Code	21-6338	Polymer group	4 or 5
Base Materials	Polymer used for coating that involves chemical reaction during film formation
Classification (Type, processing, etc.)	organic compound ; compound other than listed above
Name	alkyl methacrylate
Remarks	Alkyl: C=1–24

Fire Service Act

Fire Service Act : Hazardous Materials Data Description

Number of cabinet order etc.	Article 2, Paragraph 7 of the Act, Appended Table 1, Category IV (4)
Category; Property	Category IV; Inflammable Liquids
Item	Class II petroleums
Property	Non-water soluble liquid
Designated quantity	1,000L
Sources	Hazardous Materials Disaster Information Support System, MHLW Website; Sample SDS

Philippines
- Toxic Substances and Hazardous and Nuclear Wastes Control Act
  - the Philippines: Toxic Substances and Hazardous and Nuclear Wastes Control Act (RA6969) Data Description
    - Category PICCS
      
      Substance name in English 2-Propenoic acid, 2-methyl-, butyl ester
      
      Substance name in local language -
      
      Related Decree -
      
      Category PICCS
      
      Substance name in English BUTYL METHACRYLATE
      
      Substance name in local language -
      
      Related Decree -
      
      Category PICCS
      
      Substance name in English N-BUTYL METHACRYLATE
      
      Substance name in local language -
      
      Related Decree -
      
      Category PICCS
      
      Substance name in English PROP-2-ENOATE, 2-METHYL-, BUTYL
      
      Substance name in local language -
      
      Related Decree -

Vietnam
- Law on Chemical / Luật hóa chất số 06/2007/QH12 ngày 21 tháng 11 năm 2007
  - Viet Nam:Law on Chemical:Decree 113/2017/ND-CP:List of chemicals subject to conditional industrial production and trading Data Description Law on Chemical Decree 113/2017/ND-CP Circular 32/2017/TT-BCT National Chemical Database System
    - Substance name in English N-Butyl methacrylate
      
      Substance name in local language -
  - Viet Nam:Law on Chemical:Decree 113/2017/ND-CP:List of chemicals subject to compulsory declaration Data Description Law on Chemical Decree 113/2017/ND-CP Circular 32/2017/TT-BCT National Chemical Database System
    - Substance name in English N-Butyl methacrylate
      
      Substance name in local language -

Chemical Hazard and Risk Information

Japan

GHS Classification Results by the Japanese Government

NITE Japan-GHS Data Description GHS information
- Edition version_2
  
  Chemical Substance Name n-Butyl methacrylate
  
  Classification Result To the result webpage To the Excel flie

GHS Classification Results by the Japanese Government Data Description GHS Information

Year of implementation /renewal	2006	ID	502_H18_new
Chemical Substance Name	n-Butyl methacrylate
Classification Result	To the resut webpage To the Excel flie

Year of implementation /renewal	2007	ID	502_H19_re
Chemical Substance Name	n-Butyl methacrylate
Classification Result	To the resut webpage To the Excel flie

Year of implementation /renewal	2015	ID	H27-B-18-METI/M-018B_P
Chemical Substance Name	n-Butyl methacrylate
Classification Result	To the resut webpage To the Excel flie

Year of implementation /renewal	2021	ID	R03-C-066-MHLW
Chemical Substance Name	n-Butyl methacrylate
Classification Result	To the resut webpage To the Excel flie
Remarks	The reclassification result of only some hazard classes. As for the other classes, please see the result in FYXXXX.

Chemical Substances Hazard Assessment Report / Initial Risk Assessment Report

Chemical Substances Hazard Assessment Report / Initial Risk Assessment Report Data Description Guidance for Initial Risk Assessment ver.1 (in Japanese) Guidance for Initial Risk Assessment ver.2 (in Japanese)

Report Number	No.140
Assessed Chemical Substance Name	n-Butyl methacrylate
Details	Hazard Assessment Report (in Japanese)	Date of publication/ renewal	2008/11
	Details Initial Risk Assessment Report (in Japanese)	Date of publication/ renewal	2008/10
	Details Summary of Initial Risk Assessment Report	Date of publication/ renewal	2010/05

AJCSD_ID	C004-752-12A	CAS RN	97-88-1
Chemical Substance Name	n-Butyl methacrylate
Molecular Formula	C8H14O2
Molecular Weight	142
SMILES	O=C(OCCCC)C(C)=C
Structure

Synonym	2-Methyl butylacrylate
	2-Propenoic acid, 2-methyl-, butyl ester
	Butyl 2-methacrylate
	butyl methacrylate
	Methacrylic acid, butyl ester

Classification	I	Cabinet Order Number	1-419
Cabinet Order Name	n-Butyl methacrylate
Remarks	-
Basis of selection	Hazard Data (in Japanese)

JPSN(Japan PRTR-SDS Number)	419	Classification	II	Cabinet Order Number	2-121
Cabinet Order Name	Butyl methacrylate
Remarks	-
Basis of selection	Hazard Data (in Japanese)

Substance Name	n-Butyl methacrylate
Classification of Target Substances	Skin Irritating Hazardous Substances	Cutoff value(weight %)	1
Implementation	2024/04/01
Details	to the GHS Classification

Category	PICCS
Substance name in English	2-Propenoic acid, 2-methyl-, butyl ester
Substance name in local language	-
Related Decree	-

Edition	version_2
Chemical Substance Name	n-Butyl methacrylate
Classification Result	To the result webpage To the Excel flie