2,4',5-Trichlorobiphenyl
Also known as: PCB 31, PCB No.31, BZ No.31, 2,4',5-Trichloro-1,1'-biphenyl, 2,5,4'-Trichlorobiphenyl
2,4',5-Trichlorobiphenyl (CAS 16606-02-3) 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. Key properties include a melting point of 67℃, a boiling point of 331.5±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 227.3±19.3 °C. It is classified under GHS with signal word Warning and hazard statements H373 — May cause damage to organs through prolonged exposure and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16606-02-3
- Jingsj CID
- J-1992886-0
- Molecular Formula
- C12H7Cl3
- Molecular Weight
- 257.543 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 67℃ |
|---|---|
| Boiling Point | 331.5±27.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 227.3±19.3 °C |
| Exact Mass | 255.961334 |
| LogP | 5.52 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.604 |
GHS Safety & Compliance
- H373 — May cause damage to organs through prolonged exposure
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2903999090 |
|---|---|
| Summary | 2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,4',5-Trichlorobiphenyl?
The CAS number of 2,4',5-Trichlorobiphenyl is 16606-02-3.
What are the molecular formula and molecular weight of 2,4',5-Trichlorobiphenyl?
2,4',5-Trichlorobiphenyl has molecular formula C12H7Cl3 and molecular weight 257.543 g/mol.
Is 2,4',5-Trichlorobiphenyl hazardous?
2,4',5-Trichlorobiphenyl has GHS signal word Warning and hazard statements H373 — May cause damage to organs through prolonged exposure; H410 — Very toxic to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4',5-Trichlorobiphenyl (CAS 16606-02-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992886-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.