1,4-Di(2-thienyl)-1,4-butanedione
Also known as: 1,4-di(2'-thienyl)-1,4-butadione, 1,4-di(2-thienyl)butane-1,4-dione, 1,4-bis(thiophen-2-yl)butane-1,4-dione, 1,4-dithiophen-2-ylbutane-1,4-dione, NSC 671955
1,4-Di(2-thienyl)-1,4-butanedione (CAS 13669-05-1) 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. Key properties include a melting point of 133ºC, a boiling point of 431ºC at 760mmHg, a density of 1.301g/cm3 and a flash point of 214.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 13669-05-1
- Jingsj CID
- J-1447706-6
- Molecular Formula
- C12H10O2S2
- Molecular Weight
- 250.33700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 133ºC |
|---|---|
| Boiling Point | 431ºC at 760mmHg |
| Density | 1.301g/cm3 |
| Flash Point | 214.5ºC |
| Exact Mass | 250.01200 |
| PSA | 90.62000 |
| LogP | 3.65540 |
| Vapor Pressure | 1.24E-07mmHg at 25°C |
| Refractive Index | 1.616 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,4-Di(2-thienyl)-1,4-butanedione?
The CAS number of 1,4-Di(2-thienyl)-1,4-butanedione is 13669-05-1.
What are the molecular formula and molecular weight of 1,4-Di(2-thienyl)-1,4-butanedione?
1,4-Di(2-thienyl)-1,4-butanedione has molecular formula C12H10O2S2 and molecular weight 250.33700 g/mol.
What are the upstream and downstream products of 1,4-Di(2-thienyl)-1,4-butanedione?
For 1,4-Di(2-thienyl)-1,4-butanedione, Upstream Products: Succinyl chloride, 2-(Trifluoroacetyl)thiophene, 2-Thiophenecarboxaldehyde; Downstream Products: 2,5-Di(2-thienyl)-1H-pyrrole, 2,2':5',2''-Terthiophene-5-carboxaldehyde, 2,2':5',2''-Terthiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Di(2-thienyl)-1,4-butanedione (CAS 13669-05-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1447706-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.