Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
Also known as: 3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester, 2,5-Bis(ethoxycarbonyl)thiophene-3,4-diol, 2,5-Diethoxycarbonyl-3,4-dihydroxythiophene, 3,4-Dihydroxy-2,5-dicarbethoxythiophene, Diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate, 3,4-DIHYDROXY-THIOPHENE-2,5-DICARBOXYLIC ACID DIETHYL ESTER, MFCD03094035
Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate (CAS 1822-66-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H12O6S and a molecular weight of 260.264 g/mol. Key properties include a melting point of 132-135ºC(lit.), a boiling point of 397.7±37.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 194.3±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1822-66-8
- Jingsj CID
- J-10571-5
- Molecular Formula
- C10H12O6S
- Molecular Weight
- 260.264 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 132-135ºC(lit.) |
|---|---|
| Boiling Point | 397.7±37.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 194.3±26.5 °C |
| Exact Mass | 260.035461 |
| PSA | 121.30000 |
| LogP | 4.11 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.578 |
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 Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate?
The CAS number of Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate is 1822-66-8.
What are the molecular formula and molecular weight of Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate?
Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate has molecular formula C10H12O6S and molecular weight 260.264 g/mol.
What are the upstream and downstream products of Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate?
For Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate, Upstream Products: Diethyl 2,2'-thiodiacetate, Diethyl oxalate, Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate); Downstream Products: Diethyl 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylate, 3,4-Propylenedioxythiophene-2,5-dicarboxylic acid, 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate (CAS 1822-66-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10571-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.