Trimethylolpropane trinonanoate

三羟甲基丙烷三壬酸酯

Also known as: Trimethylolpropane tripelargonate, 2-Ethyl-2-[[(1-oxononyl)oxy]methyl]propane-1,3-diyl dinonan-1-oate, Nonanoic acid, 1,1'-[2-ethyl-2-[[(1-oxononyl)oxy]methyl]-1,3-propanediyl] ester, 1-Nonanoyloxy-2,2-bis(nonanoyloxymethyl)butane, 2,2-Bis(nonanoyloxymethyl)butyl nonanoate, 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol trinonanoate, Celanese Ester No. 9 for Gas Chromatography

Trimethylolpropane trinonanoate (CAS 126-57-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C33H62O6 and a molecular weight of 554.84200 g/mol. It is also known as Trimethylolpropane tripelargonate, 2-Ethyl-2-[[(1-oxononyl)oxy]methyl]propane-1,3-diyl dinonan-1-oate and Nonanoic acid, 1,1'-[2-ethyl-2-[[(1-oxononyl)oxy]methyl]-1,3-propanediyl] ester. Key properties include a boiling point of 598.4ºC at 760mmHg, a density of 0.95g/cm3 and a flash point of 241.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126-57-8
Jingsj CID
J-23344-6
Molecular Formula
C33H62O6
Chinese Name
三羟甲基丙烷三壬酸酯
Molecular Weight
554.84200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point598.4ºC at 760mmHg
Density0.95g/cm3
Flash Point241.9ºC

Frequently Asked Questions

What is the CAS number of Trimethylolpropane trinonanoate?

The CAS number of Trimethylolpropane trinonanoate is 126-57-8.

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

Trimethylolpropane trinonanoate has molecular formula C33H62O6 and molecular weight 554.84200 g/mol.

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

Last updated:

How to cite: Jingsj. "Trimethylolpropane trinonanoate (CAS 126-57-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23344-6 (accessed 2026-10-23).

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