2,2',4,6,6'-Pentachlorobiphenyl
Also known as: 2,2',4,6,6'-Pentachlorobiphenyl, PCB 104, 1,1'-Biphenyl, 2,2',4,6,6'-pentachloro-, 1,3,5-trichloro-2-(2,6-dichlorophenyl)benzene, BZNO 104
2,2',4,6,6'-Pentachlorobiphenyl (CAS 56558-16-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H5Cl5 and a molecular weight of 326.433 g/mol. Key properties include a melting point of 85°C, a boiling point of 341.6±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 156.1±23.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 56558-16-8
- Jingsj CID
- J-1336811-1
- Molecular Formula
- C12H5Cl5
- Molecular Weight
- 326.433 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 85°C |
|---|---|
| Boiling Point | 341.6±37.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 156.1±23.9 °C |
| Exact Mass | 323.883392 |
| LogP | 6.51 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.620 |
Frequently Asked Questions
What is the CAS number of 2,2',4,6,6'-Pentachlorobiphenyl?
The CAS number of 2,2',4,6,6'-Pentachlorobiphenyl is 56558-16-8.
What are the molecular formula and molecular weight of 2,2',4,6,6'-Pentachlorobiphenyl?
2,2',4,6,6'-Pentachlorobiphenyl has molecular formula C12H5Cl5 and molecular weight 326.433 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,2',4,6,6'-Pentachlorobiphenyl (CAS 56558-16-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1336811-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.