3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid
3,4-二甲基噻吩并[2,3-b]噻吩-2,5-二羧酸
Also known as: 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID, 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid, 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid, BUTTPARK 37\11-69, DK7499, Thieno[2,3-b]thiophene-2,5-dicarboxylic acid, 3,4-dimethyl-
3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid (CAS 175202-55-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8O4S2 and a molecular weight of 256.29800 g/mol. It is also known as 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID, 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid and BUTTPARK 37\11-69. Key properties include a melting point of >360°C, a boiling point of 538ºC at 760mmHg, a density of 1.6g/cm3 and a flash point of 279.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 175202-55-8
- Jingsj CID
- J-45147-1
- Molecular Formula
- C10H8O4S2
- Chinese Name
- 3,4-二甲基噻吩并[2,3-b]噻吩-2,5-二羧酸
- Molecular Weight
- 256.29800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >360°C |
|---|---|
| Boiling Point | 538ºC at 760mmHg |
| Density | 1.6g/cm3 |
| Flash Point | 279.2ºC |
Frequently Asked Questions
What is the CAS number of 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid?
The CAS number of 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid is 175202-55-8.
What are the molecular formula and molecular weight of 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid?
3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid has molecular formula C10H8O4S2 and molecular weight 256.29800 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-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid (CAS 175202-55-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45147-1 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.