1,1'-(thiophene-2,5-diyl)bisethan-1-one

Also known as: 2,5-Diacetylthiophene, 1,1'-(thiophene-2,5-diyl)diethanone, 1-(5-acetyl-2-thienyl)ethanone, 1-(5-acetylthiophen-2-yl)ethanone, 1-(5-ethanoylthiophen-2-yl)ethanone, Ethanone, 1,1'-(2,5-thiophenediyl)bis-

1,1'-(thiophene-2,5-diyl)bisethan-1-one (CAS 4927-10-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8O2S and a molecular weight of 168.21300 g/mol. Key properties include a melting point of 171-173ºC, a boiling point of 306.2ºC at 760 mmHg, a density of 1.184 and a flash point of 139ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4927-10-0
Jingsj CID: J-1175197-6
Molecular Formula: C₈H₈O₂S
Molecular Weight: 168.21300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	171-173ºC
Boiling Point	306.2ºC at 760 mmHg
Density	1.184
Flash Point	139ºC
Exact Mass	168.02500
PSA	62.38000
LogP	2.15330
Refractive Index	1.542

Frequently Asked Questions

What is the CAS number of 1,1'-(thiophene-2,5-diyl)bisethan-1-one?

The CAS number of 1,1'-(thiophene-2,5-diyl)bisethan-1-one is 4927-10-0.

What are the molecular formula and molecular weight of 1,1'-(thiophene-2,5-diyl)bisethan-1-one?

1,1'-(thiophene-2,5-diyl)bisethan-1-one has molecular formula C8H8O2S and molecular weight 168.21300 g/mol.

What are the upstream and downstream products of 1,1'-(thiophene-2,5-diyl)bisethan-1-one?

For 1,1'-(thiophene-2,5-diyl)bisethan-1-one, Upstream Products: 3-Butyn-2-one, 2,5-Dibromothiophene, N,N-Dimethylacetamide.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,1'-(thiophene-2,5-diyl)bisethan-1-one (CAS 4927-10-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1175197-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.