3,3',5,5'-Tetrabromo-2,2'-bithiophene
Also known as: 2,2'-Bithiophene, 3,3',5,5'-tetrabromo-, 3,5-dibromo-2-(3,5-dibromo-2-thienyl)thiophene, 3,5-dibromo-2-(3,5-dibromothiophen-2-yl)thiophene, 3,3',5,5'-Tetrabromo-2,2'-dithiophene
3,3',5,5'-Tetrabromo-2,2'-bithiophene (CAS 125143-53-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H2Br4S2 and a molecular weight of 481.848 g/mol. Key properties include a melting point of 138-143°C, a boiling point of 371.0±37.0 °C at 760 mmHg, a density of 2.4±0.1 g/cm3 and a flash point of 178.2±26.5 °C. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 125143-53-5
- Jingsj CID
- J-1377357-4
- Molecular Formula
- C8H2Br4S2
- Molecular Weight
- 481.848 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 138-143°C |
|---|---|
| Boiling Point | 371.0±37.0 °C at 760 mmHg |
| Density | 2.4±0.1 g/cm3 |
| Flash Point | 178.2±26.5 °C |
| Exact Mass | 477.633118 |
| PSA | 56.48000 |
| LogP | 6.05 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.720 |
GHS Safety & Compliance
- H318 — Causes serious eye damage
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',5,5'-Tetrabromo-2,2'-bithiophene?
The CAS number of 3,3',5,5'-Tetrabromo-2,2'-bithiophene is 125143-53-5.
What are the molecular formula and molecular weight of 3,3',5,5'-Tetrabromo-2,2'-bithiophene?
3,3',5,5'-Tetrabromo-2,2'-bithiophene has molecular formula C8H2Br4S2 and molecular weight 481.848 g/mol.
Is 3,3',5,5'-Tetrabromo-2,2'-bithiophene hazardous?
3,3',5,5'-Tetrabromo-2,2'-bithiophene has GHS signal word Danger and hazard statements H318 — Causes serious eye damage.
What are the upstream and downstream products of 3,3',5,5'-Tetrabromo-2,2'-bithiophene?
For 3,3',5,5'-Tetrabromo-2,2'-bithiophene, Upstream Products: 2,2'-Bithiophene, 3,3'-Dibromo-2,2'-bithiophene, 5,5'-Dibromo-2,2'-bithiophene; Downstream Products: 3,3'-Dibromo-2,2'-bithiophene, 2,6-Dibromo-4,4-dihexyl-4H-silolo[3,2-b:4,5-b']dithiophene, 3,3'-Dibromo-5,5'-bis(trimethylsilyl)-2,2'-bithiophene.
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',5,5'-Tetrabromo-2,2'-bithiophene (CAS 125143-53-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377357-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.