3,4,4'-Trichlorobiphenyl

3,4,4'-三氯联苯

Also known as: 1,1'-Biphenyl, 3,4,4'-trichloro-, 3,4,4'-Trichloro-1,1'-biphenyl, PCB 37, BzNo 37, 1,2-dichloro-4-(4-chlorophenyl)benzene

3,4,4'-Trichlorobiphenyl (CAS 38444-90-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H7Cl3 and a molecular weight of 257.543 g/mol. It is also known as 1,1'-Biphenyl, 3,4,4'-trichloro-, 3,4,4'-Trichloro-1,1'-biphenyl and PCB 37. Key properties include a melting point of 87°C, a boiling point of 350.0±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 242.2±19.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
38444-90-5
Jingsj CID
J-1308353-3
Molecular Formula
C12H7Cl3
Chinese Name
3,4,4'-三氯联苯
Molecular Weight
257.543 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point87°C
Boiling Point350.0±27.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point242.2±19.3 °C

Frequently Asked Questions

What is the CAS number of 3,4,4'-Trichlorobiphenyl?

The CAS number of 3,4,4'-Trichlorobiphenyl is 38444-90-5.

What are the molecular formula and molecular weight of 3,4,4'-Trichlorobiphenyl?

3,4,4'-Trichlorobiphenyl has molecular formula C12H7Cl3 and molecular weight 257.543 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'-Trichlorobiphenyl (CAS 38444-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1308353-3 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.