3,4,4',5-Tetrachlorobiphenyl
3,4,4',5-四氯联苯
Also known as: PCB 81, 3,4,4',5-TeCB, 3,4,4',5-Tetrachloro-1,1'-biphenyl, BZ NO 81, BZ-81, CB-81, PCB NO 81, 1,2,3-trichloro-5-(4-chlorophenyl)benzene
3,4,4',5-Tetrachlorobiphenyl (CAS 70362-50-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H6Cl4 and a molecular weight of 291.98800 g/mol. It is also known as PCB 81, 3,4,4',5-TeCB and 3,4,4',5-Tetrachloro-1,1'-biphenyl. Key properties include a melting point of 106.53°C (estimate), a boiling point of 379.7ºC at 760 mmHg, a density of 1.441g/cm3 and a flash point of 187.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 70362-50-4
- Jingsj CID
- J-1060410-2
- Molecular Formula
- C12H6Cl4
- Chinese Name
- 3,4,4',5-四氯联苯
- Molecular Weight
- 291.98800 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 106.53°C (estimate) |
|---|---|
| Boiling Point | 379.7ºC at 760 mmHg |
| Density | 1.441g/cm3 |
| Flash Point | 187.7ºC |
Frequently Asked Questions
What is the CAS number of 3,4,4',5-Tetrachlorobiphenyl?
The CAS number of 3,4,4',5-Tetrachlorobiphenyl is 70362-50-4.
What are the molecular formula and molecular weight of 3,4,4',5-Tetrachlorobiphenyl?
3,4,4',5-Tetrachlorobiphenyl has molecular formula C12H6Cl4 and molecular weight 291.98800 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4,4',5-Tetrachlorobiphenyl (CAS 70362-50-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1060410-2 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.