3,3'-Bithiophene
Also known as: 3,3'-Bithienyl, 3,3'-Dithienyl, 3-(3-Thienyl)thiophene, 3-Thiophen-3-ylthiophene, [3,3']Bithiophenyl, MFCD00041214
3,3'-Bithiophene (CAS 3172-56-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6S2 and a molecular weight of 166.263 g/mol. Key properties include a melting point of 132-135 °C(lit.), a boiling point of 197.6±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 50.9±6.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3172-56-3
- Jingsj CID
- J-48055-7
- Molecular Formula
- C8H6S2
- Molecular Weight
- 166.263 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 132-135 °C(lit.) |
|---|---|
| Boiling Point | 197.6±15.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 50.9±6.6 °C |
| Exact Mass | 165.991089 |
| PSA | 56.48000 |
| LogP | 3.33 |
| Vapor Pressure | 0.5±0.4 mmHg at 25°C |
| Refractive Index | 1.631 |
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 3,3'-Bithiophene?
The CAS number of 3,3'-Bithiophene is 3172-56-3.
What are the molecular formula and molecular weight of 3,3'-Bithiophene?
3,3'-Bithiophene has molecular formula C8H6S2 and molecular weight 166.263 g/mol.
What are the upstream and downstream products of 3,3'-Bithiophene?
For 3,3'-Bithiophene, Upstream Products: 3-Bromothiophene, 3-Thiopheneboronic acid, 3-Chlorothiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,3'-Bithiophene (CAS 3172-56-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48055-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.