MATERIAL PROFILE / Individual substance
CAS: 79-41-4
Function: Acrylic-system building block / research ingredient
Compare this material →This material’s published information has not yet been verified by a human reviewer.
Human verification concerns the stated information and scope. It is separate from an EcoSafe score, certification or safety approval.Individual chemical identity in the common-material baseline. Chemical identity only; purity, grade and supplier composition require separate documentation. Category placement is an editorial research grouping, not a suitability recommendation. Monomers, precursors and curing ingredients are not finished resins or ready-to-use coatings. Röhm’s monomer brochure lists this substance in its portfolio. Brochure properties are supplier reference values, not specifications for every supplier or batch.
Chemistry: Methacrylic acid
Listed supplier: Supplier not selected · substance baseline
Chemical identity only; purity, grade and supplier composition require separate documentation.
Identity snapshot: 2026-11-02 UTC.
CAS identity reference ↗10 of 16 defined fields are recorded with a source. This measures structured information currently on this site, not the completeness of every linked PDF. Missing fields remain in the denominator.
Coverage is separate from scientific accuracy, human verification and EcoSafe assessment. Molecular fields may not apply to a grade or family; they are not filled from another material to increase its score.
| Core field | Recorded information |
|---|---|
| Chemical name | Methacrylic acid Source ↗ |
| CAS number | 79-41-4 Source ↗ |
| Synonyms | Not yet recorded / may not apply |
| Molecular formula | C4H6O2 Source ↗ |
| Molecular weight | 86.09 Source ↗ |
| IUPAC name | 2-methylprop-2-enoic acid Source ↗ |
| PubChem CID | 4093 Source ↗ |
| Identity sources | https://pubchem.ncbi.nlm.nih.gov/compound/4093 Source ↗ Source reference recorded for this record's scope; source freshness is a separate review. |
| Uses | Not yet recorded / may not apply |
| Hazards | Not yet recorded / may not apply |
| Appearance | Not yet recorded / may not apply |
| Density | Not yet recorded / may not apply |
| Melting point | 61 °F Source ↗ Freezing point; NIOSH general-substance reference · Method not stated in source · Substance reference |
| Boiling point | 162 °C Source ↗ Pressure: 1013 hPa · Method not stated in source · Portfolio reference |
| Solubility | Not yet recorded / may not apply |
| SDS/TDS | Methacrylic acid — reference SDS Source ↗ CAS 79-41-4 identity reference. Document product: Methacrylic acid. Matches the generic substance identity, not every supplier grade. Confirm physical form, purity, stabilizers and regional applicability for your actual material. |
Trade names identify supplier offerings. A shared chemical name does not establish interchangeable grades or specifications.
Supplier offering; grade, purity, inhibitors and availability require confirmation.
Röhm monomer portfolio reference; generic substance identity is not an exact commercial-grade specification. Boiling pressure is preserved in hPa. Polymer-reference Tg describes polymer context, not the liquid monomer. Inhibitor levels are supplier portfolio values. Confirm current SDS/TDS and exact supply.
| Property | Value | Conditions / method |
|---|---|---|
| Boiling point | 162 °C Portfolio reference | Pressure: 1013 hPa Method not stated in source Source ↗ |
| Specific gravity | 1.02 dimensionless Substance reference | Liquid at 20 °C relative to water at 4 °C (NIOSH convention) Method not stated in source Source ↗ |
| Stabilizer / inhibitor content | 200 ± 20 ppm Portfolio reference | MEHQ; other types and concentrations available on request. Method not stated in source Source ↗ |
| Polymer-reference Tg (not monomer Tg) | 185 °C Portfolio reference | Polymer / homopolymer reference associated with this monomer; not liquid-monomer Tg. Polymerization conditions not stated. Method not stated in source Source ↗ |
| Flash point | 171 °F Substance reference | Open cup; NIOSH general-substance reference Method not stated in source Source ↗ |
| Melting / softening behavior | 61 °F Substance reference | Freezing point; NIOSH general-substance reference Method not stated in source Source ↗ |
Archived copies are dated references. Confirm the latest document for your supplier, grade and region.
SDS · Supplier example via Fisher Scientific
22-Dec-2025 · US / English (requested source variant; confirm document)
CAS 79-41-4 identity reference. Document product: Methacrylic acid. Matches the generic substance identity, not every supplier grade. Confirm physical form, purity, stabilizers and regional applicability for your actual material.
Open archived copy ↗ · Download · Supplier source ↗Range card · Röhm
Revision not stated in supplied document · Portfolio reference; ACH marked Europe only
Eight chemical identities and nine offerings including proTerra MMA. See page 4 for properties and stabilizer footnotes. Not an SDS or exact-grade TDS. Original supplier link; public hosting permission has not been established.
Supplier access / request ↗Confirm grade, composition, current availability and production location directly with the supplier.
Supplier-listed offering: MERACRYL® GMAA.
Supplier offering; grade, purity, inhibitors and availability require confirmation.
Supplier portfolio reference ↗Röhm · Methacrylate monomers / acrylic building blocks
A family research lead, not a confirmed supplier of this exact substance.
Family reference ↗Identity data and category placement do not establish safety, suitability or environmental performance. Obtain current grade-specific documentation.
Industrial Chemicals
Base Chemicals & Intermediates · Organic Intermediates
Coatings
Acrylic Coatings
Plastics & Rubber Polymers
Thermosets · Polymer Additives & Processing Aids
Library source check: November 2, 2026. Sources may require supplier access.