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1,3-Di-2-thienyl-2-propen-1-one

Also known as: 2-Propen-1-one,1,3-di-2-thienyl-, 1,3-di-2-Thienyl-2-propene-1-one, 1,3-di-thiophen-2-yl-propenone, EINECS 218-993-6, MFCD00014530, NSC 54863, 1,3-Bis(2-thienyl)-2-propen-1-one, 1,3-Bis(thiophen-2-yl)propenone, (2E)-1,3-di(thiophen-2-yl)prop-2-en-1-one, 1,3-Di(thiophen-2-yl)prop-2-en-1-one

1,3-Di-2-thienyl-2-propen-1-one (CAS 2309-48-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8OS2 and a molecular weight of 220.31100 g/mol. Key properties include a melting point of 98-100ºC, a boiling point of 365.1ºC at 760 mmHg, a density of 1.305 g/cm3 and a flash point of 174.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2309-48-0
Jingsj CID
J-4498-4
Molecular Formula
C11H8OS2
Molecular Weight
220.31100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point98-100ºC
Boiling Point365.1ºC at 760 mmHg
Density1.305 g/cm3
Flash Point174.6ºC
Exact Mass220.00200
PSA73.55000
LogP3.70570
Vapor Pressure1.61E-05mmHg at 25°C
Refractive Index1.681

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 1,3-Di-2-thienyl-2-propen-1-one?

The CAS number of 1,3-Di-2-thienyl-2-propen-1-one is 2309-48-0.

What are the molecular formula and molecular weight of 1,3-Di-2-thienyl-2-propen-1-one?

1,3-Di-2-thienyl-2-propen-1-one has molecular formula C11H8OS2 and molecular weight 220.31100 g/mol.

What are the upstream and downstream products of 1,3-Di-2-thienyl-2-propen-1-one?

For 1,3-Di-2-thienyl-2-propen-1-one, Upstream Products: 2-Thiophenecarboxaldehyde, 2-Acetylthiophene, 2-Ethynylthiophene; Downstream Products: 2-(Thiophen-2-yl)-1H-benzo[d]imidazole.

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

Last updated:

How to cite: Jingsj. "1,3-Di-2-thienyl-2-propen-1-one (CAS 2309-48-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4498-4 (accessed 2026-11-09).

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