Substance profile
Ethyl Methacrylate
Ethyl Methacrylate is colorless, liquid with an acrid odor.
01 · Identification
What Ethyl Methacrylate is
Ethyl Methacrylate is colorless, liquid with an acrid odor. Its molecular formula is C6H10O2 and its molecular weight is 114.14 g/mol. It boils at 117 °C, melts at -75 °C, is practically insoluble in water.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
02 · Identifiers
Ethyl Methacrylate identifiers and molecular data
Ethyl Methacrylate CAS number and EC number
Ethyl Methacrylate molecular formula and molecular weight
03 · GHS classification
Ethyl Methacrylate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Ethyl Methacrylate pictograms and signal word
Ethyl Methacrylate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 2 | H225 | GHS02 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 2 | H315 | GHS07 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Specific target organ toxicity - single exposure GHS chapter 3.8 | Category 3 | H335 | GHS07 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Ethyl Methacrylate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H225 | Highly flammable liquid and vapour. |
| H335 | May cause respiratory irritation. |
| H315 | Causes skin irritation. |
| H319 | Causes serious eye irritation. |
| H317 | May cause an allergic skin reaction. |
This page lists only the codes assigned to Ethyl Methacrylate. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Ethyl Methacrylate
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Ethyl Methacrylate issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Ethyl Methacrylate precautionary statements
CLP Annex VI assigns 17 precautionary statements to Ethyl Methacrylate. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Ethyl Methacrylate name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | етилов метакрилат |
| Spanish español | Metacrilato de etilo |
| Czech čeština | ethyl-methakrylát |
| Danish dansk | ethylmethacrylat |
| German Deutsch | Methacrylsäureethylester |
| Estonian eesti | etüülmetakrülaat |
| Greek ελληνικά | μεθακρυλικός αιθυλεστέρας μεθακρυλικό αιθύλιο |
| English English | ethyl methacrylate |
| French français | méthacrylate d'éthyle |
| Croatian hrvatski | etil-metakrilat |
| Italian italiano | etil-metacrilato metacrilato di etile |
| Latvian latviešu | etilmetakrilāts |
| Lithuanian lietuvių | etilmetakrilatas |
| Hungarian magyar | etil-metakrilát |
| Maltese Malti | metakrilat tal-etil |
| Dutch Nederlands | ethylmethacrylaat |
| Polish polski | metakrylan etylu ester etylowy kwasu metakrylowego |
| Portuguese português | metacrilato de etilo |
| Romanian română | metacrilat de etil |
| Slovak slovenčina | etyl-metakrylát O -etyl-2-metylpropenoát |
| Slovenian slovenščina | etil metakrilat |
| Finnish suomi | etyylimetakrylaatti |
| Swedish svenska | etylmetakrylat |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Ethyl Methacrylate GHS label elements
Everything CLP Annex VI fixes for Ethyl Methacrylate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Ethyl Methacrylate
- Highly flammable liquid and vapour.
- May cause respiratory irritation.
- Causes skin irritation.
- Causes serious eye irritation.
- May cause an allergic skin reaction.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Use explosion-proof [electrical/ventilating/lighting/…] equipment.
- Use only non-sparking tools.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Wash … thoroughly after handling.
- Contaminated work clothing should not be allowed out of the workplace.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF ON SKIN:
- IF IN EYES:
- Get medical advice/attention.
- If skin irritation occurs:
- If skin irritation or rash occurs:
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
- Wash with plenty of water/…
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Ethyl Methacrylate in the GHS label constructor →
07 · Health hazards
Ethyl Methacrylate health hazards and exposure limits
Ethyl Methacrylate hazard summary
A skin, eye, and respiratory tract irritant; Can cause skin sensitization; Causes lachrymation; [ICSC] Reports of occupational contact dermatitis; A lachrymator; Inhalation of high vapor concentrations may cause symptoms of CNS depression; [HSDB] An irritant and lachrymator; May cause skin sensitization; [Aldrich MSDS] Occupational asthma reported in cosmetologists; [Reference #1] Ethyl methacrylate, stabilized (UN2277) has warning of explosive polymerization; [ERG 2016]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Ethyl Methacrylate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Ethyl Methacrylate boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 117 °C (242.6 °F) | HSDB | |
| 117.22 °C (243 °F) | at 760 mmHg | CAMEO |
Ethyl Methacrylate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -75 °C (-103 °F) | CAMEO |
Ethyl Methacrylate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.91 g/cm³ | ICSC | |
| 0.9135 g/cm³ | at 20 °C | HSDB | |
| 0.9151 g/cm³ | at 20 °C | CAMEO |
Ethyl Methacrylate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Slightly soluble in chloroform; miscible with ethanol, ethyl ether | HSDB | |
| Insoluble in water | HSDB | ||
| In water, 5.4X10+3 mg/L at 25 °C | at 25 °C | HSDB |
Ethyl Methacrylate vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 20.59 mmHg | at 20 °C | HSDB |
| 15.0012 mmHg | at 20 °C | ICSC |
Ethyl Methacrylate flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 20 °C (68 °F) | Open cup | HSDB |
| 15.56 °C (60 °F) | CAMEO | ||
| 20 °C (68 °F) | ICSC |
Ethyl Methacrylate autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 393 °C (739.4 °F) | HSDB | |
| 393.33 °C (740 °F) | CAMEO | ||
| 450 °C (842 °F) | ICSC |
Ethyl Methacrylate lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.8 % by volume | HSDB |
Ethyl Methacrylate vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 20.59 (air = 1) | HSDB | |
| 3.94 (air = 1) | CAMEO | ||
| 3.9 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Ethyl Methacrylate fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Ethyl Methacrylate fire potential
A very dangerous fire and explosion hazard when exposed to heat, sparks, or flame; can react with oxidizing materials.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Ethyl Methacrylate storage and handling
Ethyl Methacrylate safe storage
Fireproof. Separated from strong oxidants. Cool. Keep in the dark. Store only if stabilized.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Ethyl Methacrylate storage conditions
Before entering confined space where this chemical may be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containers in a cool, well ventilated area away from oxidizers (such as perchlorates, peroxides, permanganates, chlorates, and nitrates). Sources of ignition, such as smoking and open flames, are prohibited where ethyl methacrylate is handled, used, or stored. Metal containers involving the transfer of 5 gallons or more of ethyl methacrylate should be grounded and bonded. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers of ethyl methacrylate.
Source: Hazardous Substances Data Bank (HSDB)
Ethyl Methacrylate incompatible materials
Forms explosive mixture with air. Incompatible with strong acids, amines, ozidizers. Corrodes some metals.
Source: Hazardous Substances Data Bank (HSDB)
Ethyl Methacrylate reactivity
May polymerize if heated for prolonged periods or accidentally contaminated. If polymerization takes place inside a container, the container may violently rupture. Can react with oxidizing materials. When heated to decomposition it emits irritating fumes and acrid smoke [Sax, 9th ed., 1996, p. 1576].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Ethyl Methacrylate in the storage compatibility matrix →
11 · Transport
Ethyl Methacrylate UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Ethyl Methacrylate under UN 2277 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| ETHYL METHACRYLATE, STABILIZED | 3 | F1 | II | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 3 is “Flammable liquids” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Ethyl methacrylate, stabilized | 3 | II | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 3 is “Flammable and combustible liquid” (49 CFR 173.2).
12 · Questions
Ethyl Methacrylate — frequently asked questions
What is the CAS number of Ethyl Methacrylate?
The CAS number of Ethyl Methacrylate is 97-63-2. Its EC number is 202-597-5.
What is the chemical formula of Ethyl Methacrylate?
The molecular formula of Ethyl Methacrylate is C6H10O2 and its molecular weight is 114.14 g/mol.
What does a Ethyl Methacrylate label have to show?
Under CLP Annex VI the label for Ethyl Methacrylate carries the pictograms Flame and Exclamation mark and the signal word is Danger.
Is Ethyl Methacrylate flammable?
Yes. CLP Annex VI assigns Ethyl Methacrylate H225 — highly flammable liquid and vapour. The flash point reported for it is 20 °C (68 °F), Open cup (HSDB).
Is Ethyl Methacrylate a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Ethyl Methacrylate. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the boiling point of Ethyl Methacrylate?
The boiling point reported for Ethyl Methacrylate is 117 °C (242.6 °F) (HSDB).
What is the melting point of Ethyl Methacrylate?
The melting point reported for Ethyl Methacrylate is -75 °C (-103 °F) (CAMEO).
How should Ethyl Methacrylate be stored?
CLP Annex VI assigns Ethyl Methacrylate the storage statement P403. Before entering confined space where this chemical may be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containers in a cool, well ventilated area away from oxidizers (such as perchlorates, peroxides, permanganates, chlorates, and nitrates). Sources of ignition, such as smoking and open flames, are prohibited where ethyl methacrylate is handled, used, or stored. Metal containers involving the transfer of 5 gallons or more of ethyl methacrylate should be grounded and bonded. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers of ethyl methacrylate. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Ethyl Methacrylate
Keep going: substances starting with E, or search the whole database by name, CAS number, pictogram or signal word.