2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride

2,3-双(2,4,5-三甲基-3-噻吩基)马来酸酐

Also known as: 1,2-bis(2,4,5-trimethyl-3-thienyl)maleic anhydride, 1,2-bis(2,4,5-trimethylthiophene-3-yl)maleic anhydride, 3,4-Bis(2,4,5-trimethyl-3-thienyl)-2,5-furandione, 3,4-Bis(2,4,5-trimethyl-3-thienyl)furan-2,5-dione, 3,4-bis(2,4,5-trimethylthiophen-3-yl)furan-2,5-dione, Bistrimethylthienylmaleicanhydride, B1534

2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride (CAS 112440-47-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H18O3S2 and a molecular weight of 346.46400 g/mol. It is also known as 1,2-bis(2,4,5-trimethyl-3-thienyl)maleic anhydride, 1,2-bis(2,4,5-trimethylthiophene-3-yl)maleic anhydride and 3,4-Bis(2,4,5-trimethyl-3-thienyl)-2,5-furandione. Key properties include a melting point of 168ºC, a boiling point of 514.4ºC at 760 mmHg, a density of 1.297g/cm3 and a flash point of 264.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
112440-47-8
Jingsj CID
J-9545-3
Molecular Formula
C18H18O3S2
Chinese Name
2,3-双(2,4,5-三甲基-3-噻吩基)马来酸酐
Molecular Weight
346.46400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point168ºC
Boiling Point514.4ºC at 760 mmHg
Density1.297g/cm3
Flash Point264.9ºC

Frequently Asked Questions

What is the CAS number of 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride?

The CAS number of 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride is 112440-47-8.

What are the molecular formula and molecular weight of 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride?

2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride has molecular formula C18H18O3S2 and molecular weight 346.46400 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride (CAS 112440-47-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9545-3 (accessed 2026-10-22).

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