2,3,3',4,4',5,5'-Heptachlorobiphenyl
2,3,3',4,4',5,5'-七氯联苯
Also known as: PCB 189, BZNO 189, PCB-189, 2,3,3',4,4',5,5'-Heptachloro-1,1'-biphenyl, 1,1'-Biphenyl, 2,3,3',4,4',5,5'-heptachloro-
2,3,3',4,4',5,5'-Heptachlorobiphenyl (CAS 39635-31-9) 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 395.323 g/mol. It is also known as PCB 189, BZNO 189 and PCB-189. Key properties include a melting point of 170°C, a boiling point of 443.9±40.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 225.4±24.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 39635-31-9
- Jingsj CID
- J-1409728-1
- Molecular Formula
- C12H3Cl7
- Chinese Name
- 2,3,3',4,4',5,5'-七氯联苯
- Molecular Weight
- 395.323 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 170°C |
|---|---|
| Boiling Point | 443.9±40.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 225.4±24.7 °C |
Frequently Asked Questions
What is the CAS number of 2,3,3',4,4',5,5'-Heptachlorobiphenyl?
The CAS number of 2,3,3',4,4',5,5'-Heptachlorobiphenyl is 39635-31-9.
What are the molecular formula and molecular weight of 2,3,3',4,4',5,5'-Heptachlorobiphenyl?
2,3,3',4,4',5,5'-Heptachlorobiphenyl has molecular formula C12H3Cl7 and molecular weight 395.323 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3,3',4,4',5,5'-Heptachlorobiphenyl (CAS 39635-31-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1409728-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.