Ethoxylated trimethylolpropane triacrylate

乙氧基化三羟甲基丙烷三丙烯酸酯

Also known as: Trimethylolpropane ethoxylate triacrylate, TMP3EOTA, EO-TMPTA, ETPTA, Trimethylolpropane triethoxylate triacrylate, Trimethylolpropane polyoxyethylene triacrylate, 2-(2,2-Bis{[2-(acryloyloxy)ethoxy]methyl}butoxy)ethyl acrylate, 2-(2,2-bis{[2-(acryloyloxy)ethoxy]methyl}butoxy)ethyl prop-2-enoate, Ethoxylated3 trimethylolpropane triacrylate, A-TMPT 3EO, A-TMPT 9EO

Ethoxylated trimethylolpropane triacrylate (CAS 28961-43-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H32O9 and a molecular weight of 428.473 g/mol. It is also known as Trimethylolpropane ethoxylate triacrylate, TMP3EOTA and EO-TMPTA. Key properties include a boiling point of 498.5±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 212.2±28.8 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28961-43-5
Jingsj CID
J-20918-0
Molecular Formula
C21H32O9
Chinese Name
乙氧基化三羟甲基丙烷三丙烯酸酯
Molecular Weight
428.473 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point498.5±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point212.2±28.8 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Ethoxylated trimethylolpropane triacrylate?

The CAS number of Ethoxylated trimethylolpropane triacrylate is 28961-43-5.

What are the molecular formula and molecular weight of Ethoxylated trimethylolpropane triacrylate?

Ethoxylated trimethylolpropane triacrylate has molecular formula C21H32O9 and molecular weight 428.473 g/mol.

Is Ethoxylated trimethylolpropane triacrylate hazardous?

Ethoxylated trimethylolpropane triacrylate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Ethoxylated trimethylolpropane triacrylate (CAS 28961-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20918-0 (accessed 2026-10-24).

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