2,2',3,3',4,5,5'-Heptachlorobiphenyl
2,2',3,3',4,5,5'-七氯联苯
Also known as: PCB 172, PCB No. 172, 1,1'-Biphenyl, 2,2',3,3',4',5,5'-heptachloro-, 2,2',3,3',4,5,5'-Heptachloro-1,1'-biphenyl
2,2',3,3',4,5,5'-Heptachlorobiphenyl (CAS 52663-74-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H3Cl7 and a molecular weight of 395.32300 g/mol. It is also known as PCB 172, PCB No. 172 and 1,1'-Biphenyl, 2,2',3,3',4',5,5'-heptachloro-. Key properties include a melting point of 131.31°C (estimate), a boiling point of 427.2ºC at 760mmHg, a density of 1.658g/cm3 and a flash point of 213ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 52663-74-8
- Jingsj CID
- J-978135-3
- Molecular Formula
- C12H3Cl7
- Chinese Name
- 2,2',3,3',4,5,5'-七氯联苯
- Molecular Weight
- 395.32300 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 131.31°C (estimate) |
|---|---|
| Boiling Point | 427.2ºC at 760mmHg |
| Density | 1.658g/cm3 |
| Flash Point | 213ºC |
Frequently Asked Questions
What is the CAS number of 2,2',3,3',4,5,5'-Heptachlorobiphenyl?
The CAS number of 2,2',3,3',4,5,5'-Heptachlorobiphenyl is 52663-74-8.
What are the molecular formula and molecular weight of 2,2',3,3',4,5,5'-Heptachlorobiphenyl?
2,2',3,3',4,5,5'-Heptachlorobiphenyl has molecular formula C12H3Cl7 and molecular weight 395.32300 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,2',3,3',4,5,5'-Heptachlorobiphenyl (CAS 52663-74-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-978135-3 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.