thiophene-3,4-dicarbaldehyde
Also known as: 3,4-thiophenedicarboxaldehyde, 3,4-diformylthiophene, thiophene-3,4-dicarboxaldehyde
thiophene-3,4-dicarbaldehyde (CAS 1073-31-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4O2S and a molecular weight of 140.16000 g/mol. Key properties include a melting point of 81 °C, a boiling point of 293.888ºC at 760 mmHg, a density of 1.371g/cm3 and a flash point of 131.539ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1073-31-0
- Jingsj CID
- J-1392925-4
- Molecular Formula
- C6H4O2S
- Molecular Weight
- 140.16000 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 81 °C |
|---|---|
| Boiling Point | 293.888ºC at 760 mmHg |
| Density | 1.371g/cm3 |
| Flash Point | 131.539ºC |
| Exact Mass | 139.99300 |
| PSA | 62.38000 |
| LogP | 1.37310 |
| Vapor Pressure | 0.002mmHg at 25°C |
| Refractive Index | 1.669 |
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 thiophene-3,4-dicarbaldehyde?
The CAS number of thiophene-3,4-dicarbaldehyde is 1073-31-0.
What are the molecular formula and molecular weight of thiophene-3,4-dicarbaldehyde?
thiophene-3,4-dicarbaldehyde has molecular formula C6H4O2S and molecular weight 140.16000 g/mol.
What are the upstream and downstream products of thiophene-3,4-dicarbaldehyde?
For thiophene-3,4-dicarbaldehyde, Upstream Products: 3,4-Dibromothiophene, N,N-Dimethylformamide, 3,4-Dicyanothiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "thiophene-3,4-dicarbaldehyde (CAS 1073-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1392925-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.