Benzo[1,2-b:4,5-b']dithiophene

Also known as: Thieno[2,3-f][1]benzothiole, 1,5-Dithia-s-indacene, Benzodithiophene, Benzo[1,2-b:4,5-b']dithiophene, B3464, BDT15, IN1601

Benzo[1,2-b:4,5-b']dithiophene (CAS 267-65-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H6S2 and a molecular weight of 190.28500 g/mol. Key properties include a melting point of 198 °C, a boiling point of 344.404ºC at 760 mmHg, a density of 1.393g/cm3 and a flash point of 120.444ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 267-65-2
Jingsj CID: J-34992-8
Molecular Formula: C₁₀H₆S₂
Molecular Weight: 190.28500 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	198 °C
Boiling Point	344.404ºC at 760 mmHg
Density	1.393g/cm3
Flash Point	120.444ºC
Exact Mass	189.99100
PSA	56.48000
LogP	4.11600
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.806

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 Benzo[1,2-b:4,5-b']dithiophene?

The CAS number of Benzo[1,2-b:4,5-b']dithiophene is 267-65-2.

What are the molecular formula and molecular weight of Benzo[1,2-b:4,5-b']dithiophene?

Benzo[1,2-b:4,5-b']dithiophene has molecular formula C10H6S2 and molecular weight 190.28500 g/mol.

What are the upstream and downstream products of Benzo[1,2-b:4,5-b']dithiophene?

For Benzo[1,2-b:4,5-b']dithiophene, Upstream Products: 1,4-Diethylbenzene, 1,4-Dibromo-2,5-diiodobenzene; Downstream Products: Benzo[1,2-b:4,5-b']dithiophene-4,8-dione.

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. "Benzo[1,2-b:4,5-b']dithiophene (CAS 267-65-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34992-8 (accessed 2026-11-09).

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