1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione

1,2-双(3-甲基噻吩)乙烷-1,2-二酮

Also known as: 3,3'-dimethylthienil, 1,2-ethanedione, 1,2-bis(3-methyl-2-thienyl)-, ethanedione, bis(3-methyl-2-thienyl)- (9CI)

1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione (CAS 147951-24-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H10O2S2 and a molecular weight of 250.33700 g/mol. It is also known as 3,3'-dimethylthienil, 1,2-ethanedione, 1,2-bis(3-methyl-2-thienyl)- and ethanedione, bis(3-methyl-2-thienyl)- (9CI). Key properties include a boiling point of 411.5ºC at 760mmHg, a density of 1.304g/cm3 and a flash point of 202.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
147951-24-4
Jingsj CID
J-11742-5
Molecular Formula
C12H10O2S2
Chinese Name
1,2-双(3-甲基噻吩)乙烷-1,2-二酮
Molecular Weight
250.33700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point411.5ºC at 760mmHg
Density1.304g/cm3
Flash Point202.7ºC

Frequently Asked Questions

What is the CAS number of 1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione?

The CAS number of 1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione is 147951-24-4.

What are the molecular formula and molecular weight of 1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione?

1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione has molecular formula C12H10O2S2 and molecular weight 250.33700 g/mol.

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

Last updated:

How to cite: Jingsj. "1,2-bis(3-methylthiophen-2-yl)ethane-1,2-dione (CAS 147951-24-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11742-5 (accessed 2026-10-25).

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