Trimethylolpropane trimethacrylate

三羟甲基丙烷三甲基丙烯酸酯

Also known as: TMPTMA, 2,2-Bis(methacryloyloxymethyl)butyl methacrylate, 2,2-Bis[(methacryloyloxy)methyl]butyl methacrylate, 2,2-bis(hydroxymethyl)butanol trimethacrylate, 2-Ethyl-2-hydroxymethyl-1,3-propanediol trimethacrylate, Methacrylic acid, triester with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, SR350, Saret515, blemmerptt, chemlink30, chemlink3080, hi-crossm, lightestertmp, monocizertd1500, nkestertmpt, td1500, td1500s, atm11, trimethylol propane trimethacrylate

Trimethylolpropane trimethacrylate (CAS 3290-92-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H26O6 and a molecular weight of 338.395 g/mol. It is also known as TMPTMA, 2,2-Bis(methacryloyloxymethyl)butyl methacrylate and 2,2-Bis[(methacryloyloxy)methyl]butyl methacrylate. Key properties include a melting point of -25°C, a boiling point of 422.1±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 181.4±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3290-92-4
Jingsj CID
J-1990679-1
Molecular Formula
C18H26O6
Chinese Name
三羟甲基丙烷三甲基丙烯酸酯
Molecular Weight
338.395 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-25°C
Boiling Point422.1±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point181.4±23.2 °C

GHS Safety & Compliance

Environmental Hazard

Frequently Asked Questions

What is the CAS number of Trimethylolpropane trimethacrylate?

The CAS number of Trimethylolpropane trimethacrylate is 3290-92-4.

What are the molecular formula and molecular weight of Trimethylolpropane trimethacrylate?

Trimethylolpropane trimethacrylate has molecular formula C18H26O6 and molecular weight 338.395 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Trimethylolpropane trimethacrylate (CAS 3290-92-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990679-1 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.