4,5-dimethylthiophene-2-carbaldehyde

4,5-二甲基噻吩-2-甲醛

Also known as: 4,5-dimethylthiophene-2-carboxaldehyde, 2,3-Dimethyl-5-formylthiophene, 2-Thiophenecarboxaldehyde,4,5-dimethyl-, 4,5-DIMETHYLTHIOPHENE-2-CARBOXALDEHYDE, 4,5-Dimethylthiophene-2-carboxaldehyde,97%

4,5-dimethylthiophene-2-carbaldehyde (CAS 5928-48-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8OS and a molecular weight of 140.20300 g/mol. It is also known as 4,5-dimethylthiophene-2-carboxaldehyde, 2,3-Dimethyl-5-formylthiophene and 2-Thiophenecarboxaldehyde,4,5-dimethyl-. Key properties include a boiling point of 80ºC, a density of 1.179 and a flash point of 82-85ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5928-48-3
Jingsj CID
J-11740-3
Molecular Formula
C7H8OS
Chinese Name
4,5-二甲基噻吩-2-甲醛
Molecular Weight
140.20300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point80ºC
Density1.179
Flash Point82-85ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4,5-dimethylthiophene-2-carbaldehyde?

The CAS number of 4,5-dimethylthiophene-2-carbaldehyde is 5928-48-3.

What are the molecular formula and molecular weight of 4,5-dimethylthiophene-2-carbaldehyde?

4,5-dimethylthiophene-2-carbaldehyde has molecular formula C7H8OS and molecular weight 140.20300 g/mol.

Is 4,5-dimethylthiophene-2-carbaldehyde hazardous?

4,5-dimethylthiophene-2-carbaldehyde has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4,5-dimethylthiophene-2-carbaldehyde (CAS 5928-48-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11740-3 (accessed 2026-10-22).

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