5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile

5-乙酰基-3,4-二甲基噻吩并[2,3-b]噻吩-2-甲腈

Also known as: hms554h12

5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile (CAS 845266-23-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NOS2 and a molecular weight of 235.32500 g/mol. It is also known as hms554h12. Key properties include a boiling point of 421.6ºC at 760 mmHg, a density of 1.33g/cm3 and a flash point of 208.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
845266-23-1
Jingsj CID
J-1139000-4
Molecular Formula
C11H9NOS2
Chinese Name
5-乙酰基-3,4-二甲基噻吩并[2,3-b]噻吩-2-甲腈
Molecular Weight
235.32500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point421.6ºC at 760 mmHg
Density1.33g/cm3
Flash Point208.8ºC

Frequently Asked Questions

What is the CAS number of 5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile?

The CAS number of 5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile is 845266-23-1.

What are the molecular formula and molecular weight of 5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile?

5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile has molecular formula C11H9NOS2 and molecular weight 235.32500 g/mol.

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

Last updated:

How to cite: Jingsj. "5-acetyl-3,4-dimethylthieno[2,3-b]thiophene-2-carbonitrile (CAS 845266-23-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1139000-4 (accessed 2026-10-25).

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