3,4-Dichlorobiphenyl
3,4-二氯联苯
Also known as: PCB 12, 1,1'-Biphenyl, 3,4-dichloro-, 3,4-PCB, 3,4-Dichloro-1,1'-biphenyl, 3,4-Dichlorodiphenyl, 1,2-Dichloro-4-phenylbenzene, BZNo 12, BALLSCHMITER No 12, NSC 249832
3,4-Dichlorobiphenyl (CAS 2974-92-7) 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 PCB 12, 1,1'-Biphenyl, 3,4-dichloro- and 3,4-PCB. Key properties include a melting point of 49.5°C, a boiling point of 322.5ºC at 760 mmHg, a density of 1.249 g/cm3 and a flash point of 148.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2974-92-7
- Jingsj CID
- J-1334218-2
- 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
| Melting Point | 49.5°C |
|---|---|
| Boiling Point | 322.5ºC at 760 mmHg |
| Density | 1.249 g/cm3 |
| Flash Point | 148.8ºC |
Frequently Asked Questions
What is the CAS number of 3,4-Dichlorobiphenyl?
The CAS number of 3,4-Dichlorobiphenyl is 2974-92-7.
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 2974-92-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1334218-2 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.