3,4'-Dichlorobiphenyl
3,4'-二氯联苯
Also known as: 3,4'-Dichlorobiphenyl, 1,1'-Biphenyl, 3,4'-dichloro-, 1-chloro-3-(4-chlorophenyl)benzene, 1-chloro-4-(3-chlorophenyl)benzene, PCB 13, BZNO 13
3,4'-Dichlorobiphenyl (CAS 2974-90-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8Cl2 and a molecular weight of 223.09800 g/mol. It is also known as 1,1'-Biphenyl, 3,4'-dichloro-, 1-chloro-3-(4-chlorophenyl)benzene and 1-chloro-4-(3-chlorophenyl)benzene. Key properties include a boiling point of 321.3ºC at 760 mmHg, a density of 1.249g/cm3 and a flash point of 147.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2974-90-5
- Jingsj CID
- J-1390005-8
- Molecular Formula
- C12H8Cl2
- Chinese Name
- 3,4'-二氯联苯
- Molecular Weight
- 223.09800 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 321.3ºC at 760 mmHg |
|---|---|
| Density | 1.249g/cm3 |
| Flash Point | 147.8ºC |
Frequently Asked Questions
What is the CAS number of 3,4'-Dichlorobiphenyl?
The CAS number of 3,4'-Dichlorobiphenyl is 2974-90-5.
What are the molecular formula and molecular weight of 3,4'-Dichlorobiphenyl?
3,4'-Dichlorobiphenyl has molecular formula C12H8Cl2 and molecular weight 223.09800 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'-Dichlorobiphenyl (CAS 2974-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1390005-8 (accessed 2026-10-26).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.