3,4-Dimethylthiophene-2-carboxylic acid
3,4-二甲基噻吩-2-甲酸
Also known as: 2-Thiophenecarboxylic acid, 3,4-dimethyl-, 3,4-Dimethyl-2-thiophenecarboxylic acid, 3,4-Dimethyl-thiophen-2-carbonsaeure, 3,4-dimethyl-thiophene-2-carboxylic acid
3,4-Dimethylthiophene-2-carboxylic acid (CAS 89639-74-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8O2S and a molecular weight of 156.20200 g/mol. It is also known as 2-Thiophenecarboxylic acid, 3,4-dimethyl-, 3,4-Dimethyl-2-thiophenecarboxylic acid and 3,4-Dimethyl-thiophen-2-carbonsaeure. Key properties include a boiling point of 289.916ºC at 760 mmHg, a density of 1.26g/cm3 and a flash point of 129.137ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 89639-74-7
- Jingsj CID
- J-998531-5
- Molecular Formula
- C7H8O2S
- Chinese Name
- 3,4-二甲基噻吩-2-甲酸
- Molecular Weight
- 156.20200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 289.916ºC at 760 mmHg |
|---|---|
| Density | 1.26g/cm3 |
| Flash Point | 129.137ºC |
Frequently Asked Questions
What is the CAS number of 3,4-Dimethylthiophene-2-carboxylic acid?
The CAS number of 3,4-Dimethylthiophene-2-carboxylic acid is 89639-74-7.
What are the molecular formula and molecular weight of 3,4-Dimethylthiophene-2-carboxylic acid?
3,4-Dimethylthiophene-2-carboxylic acid has molecular formula C7H8O2S and molecular weight 156.20200 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dimethylthiophene-2-carboxylic acid (CAS 89639-74-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-998531-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.