2,3'-Bithiophene

Also known as: 2,3'-Bithienyl, 2,3'-Dithienyl, 2-thiophen-3-ylthiophene, MFCD04039963, [2,3']bithiophenyl

2,3'-Bithiophene (CAS 2404-89-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6S2 and a molecular weight of 166.26300 g/mol. Key properties include a melting point of 60-64ºC(lit.), a boiling point of 223.4ºC at 760mmHg, a density of 1.243g/cm3 and a flash point of 63.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2404-89-9
Jingsj CID: J-1992422-2
Molecular Formula: C₈H₆S₂
Molecular Weight: 166.26300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	60-64ºC(lit.)
Boiling Point	223.4ºC at 760mmHg
Density	1.243g/cm3
Flash Point	63.2ºC
Exact Mass	165.99100
PSA	56.48000
LogP	3.47660
Vapor Pressure	0.143mmHg at 25°C
Refractive Index	1.63

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 2,3'-Bithiophene?

The CAS number of 2,3'-Bithiophene is 2404-89-9.

What are the molecular formula and molecular weight of 2,3'-Bithiophene?

2,3'-Bithiophene has molecular formula C8H6S2 and molecular weight 166.26300 g/mol.

What are the upstream and downstream products of 2,3'-Bithiophene?

For 2,3'-Bithiophene, Upstream Products: 2-Iodothiophene, 3-Thiopheneboronic acid, 2-Bromothiophene.

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. "2,3'-Bithiophene (CAS 2404-89-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992422-2 (accessed 2026-11-09).

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