2-(thiophen-3-yl)-1H-benzimidazole

2-(噻吩-3-基)-1H-苯并咪唑

Also known as: 1H-Benzimidazole, 2-(3-thienyl)-, 2-(3-thienyl)-1H-benzimidazole, 2-thiophen-3-yl-1H-benzimidazole, 2-(Thiophen-3-yl)-1H-benzo[d]imidazole, Benzimidazole, 2-(3-thienyl)-

2-(thiophen-3-yl)-1H-benzimidazole (CAS 3878-21-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8N2S and a molecular weight of 200.26000 g/mol. It is also known as 1H-Benzimidazole, 2-(3-thienyl)-, 2-(3-thienyl)-1H-benzimidazole and 2-thiophen-3-yl-1H-benzimidazole. Key properties include a boiling point of 413.8ºC at 760 mmHg, a density of 1.336g/cm3 and a flash point of 204.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3878-21-5
Jingsj CID
J-1451723-3
Molecular Formula
C11H8N2S
Chinese Name
2-(噻吩-3-基)-1H-苯并咪唑
Molecular Weight
200.26000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point413.8ºC at 760 mmHg
Density1.336g/cm3
Flash Point204.3ºC

Frequently Asked Questions

What is the CAS number of 2-(thiophen-3-yl)-1H-benzimidazole?

The CAS number of 2-(thiophen-3-yl)-1H-benzimidazole is 3878-21-5.

What are the molecular formula and molecular weight of 2-(thiophen-3-yl)-1H-benzimidazole?

2-(thiophen-3-yl)-1H-benzimidazole has molecular formula C11H8N2S and molecular weight 200.26000 g/mol.

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

Last updated:

How to cite: Jingsj. "2-(thiophen-3-yl)-1H-benzimidazole (CAS 3878-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1451723-3 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.