3,3',4,4',5-Pentachlorobiphenyl
3,3',4,4',5-五氯联苯
Also known as: PCB-126, 1,1'-Biphenyl, 3,3',4,4',5-pentachloro-, 1,2,3-trichloro-5-(3,4-dichlorophenyl)benzene, 3,3',4,4',5-PCB, BZ NO 126, CB-126, PCB NO 126
3,3',4,4',5-Pentachlorobiphenyl (CAS 57465-28-8) 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. It is also known as PCB-126, 1,1'-Biphenyl, 3,3',4,4',5-pentachloro- and 1,2,3-trichloro-5-(3,4-dichlorophenyl)benzene. Key properties include a melting point of 106°C, a boiling point of 409.2±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 206.1±24.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 57465-28-8
- Jingsj CID
- J-1027151-7
- Molecular Formula
- C12H5Cl5
- Chinese Name
- 3,3',4,4',5-五氯联苯
- 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 | 106°C |
|---|---|
| Boiling Point | 409.2±40.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 206.1±24.7 °C |
Frequently Asked Questions
What is the CAS number of 3,3',4,4',5-Pentachlorobiphenyl?
The CAS number of 3,3',4,4',5-Pentachlorobiphenyl is 57465-28-8.
What are the molecular formula and molecular weight of 3,3',4,4',5-Pentachlorobiphenyl?
3,3',4,4',5-Pentachlorobiphenyl has molecular formula C12H5Cl5 and molecular weight 326.433 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,3',4,4',5-Pentachlorobiphenyl (CAS 57465-28-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1027151-7 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.