alpha-Quinquethiophene
α-五联噻吩
Also known as: 2,2':5',2'':5'',2''':5''',2''''-Quinquethiophene, 2,5-bis(5-thiophen-2-ylthiophen-2-yl)thiophene, ALPHA-QUINQUETHIOPHENE, alpha-5T, α-Quinquethiophene
alpha-Quinquethiophene (CAS 5660-45-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C20H12S5 and a molecular weight of 412.63400 g/mol. It is also known as 2,2':5',2'':5'',2''':5''',2''''-Quinquethiophene, 2,5-bis(5-thiophen-2-ylthiophen-2-yl)thiophene and ALPHA-QUINQUETHIOPHENE. Key properties include a melting point of 253ºC, a boiling point of 535.2ºC at 760 mmHg, a density of 1.384g/cm3 and a flash point of 210.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5660-45-7
- Jingsj CID
- J-34465-2
- Molecular Formula
- C20H12S5
- Chinese Name
- α-五联噻吩
- Molecular Weight
- 412.63400 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 253ºC |
|---|---|
| Boiling Point | 535.2ºC at 760 mmHg |
| Density | 1.384g/cm3 |
| Flash Point | 210.8ºC |
Frequently Asked Questions
What is the CAS number of alpha-Quinquethiophene?
The CAS number of alpha-Quinquethiophene is 5660-45-7.
What are the molecular formula and molecular weight of alpha-Quinquethiophene?
alpha-Quinquethiophene has molecular formula C20H12S5 and molecular weight 412.63400 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alpha-Quinquethiophene (CAS 5660-45-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34465-2 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.