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Ethyl thieno[3,2-b]thiophene-2-carboxylate
Also known as: thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester, thieno[3,2-b]thiophene-2-carboxylic acid, ethyl ester, THI101
Ethyl thieno[3,2-b]thiophene-2-carboxylate (CAS 201004-08-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8O2S2 and a molecular weight of 212.289 g/mol. Key properties include a boiling point of 318.8±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 146.6±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 201004-08-2
- Jingsj CID
- J-1603742-6
- Molecular Formula
- C9H8O2S2
- Molecular Weight
- 212.289 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 318.8±22.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 146.6±22.3 °C |
| Exact Mass | 211.996567 |
| PSA | 82.78000 |
| LogP | 5.74 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.651 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Ethyl thieno[3,2-b]thiophene-2-carboxylate?
The CAS number of Ethyl thieno[3,2-b]thiophene-2-carboxylate is 201004-08-2.
What are the molecular formula and molecular weight of Ethyl thieno[3,2-b]thiophene-2-carboxylate?
Ethyl thieno[3,2-b]thiophene-2-carboxylate has molecular formula C9H8O2S2 and molecular weight 212.289 g/mol.
What are the upstream and downstream products of Ethyl thieno[3,2-b]thiophene-2-carboxylate?
For Ethyl thieno[3,2-b]thiophene-2-carboxylate, Upstream Products: 3-Bromothiophene-2-carbaldehyde, Ethyl thioglycolate; Downstream Products: Thieno[3,2-b]thiophene, Thieno[3,2-b]thiophene-2-carboxylic acid, 2,5-Dibromothieno[3,2-b]thiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl thieno[3,2-b]thiophene-2-carboxylate (CAS 201004-08-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1603742-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.