4,4'-Biphenyldisulfonyl chloride
4,4'-联苯二磺酰氯
Also known as: 4,4'-Diphenyldisulfonyl chloride, 4,4'-Diphenyldisulfonyl dichloride, Biphenyl-4,4'-disulfonyl dichloride, 4,4'-Biphenyldisulfonyl dichloride, 4,4'-Biphenylylenedisulfonyl chloride, 4-(4-chlorosulfonylphenyl)benzenesulfonyl chloride, [1,1'-Biphenyl]-4,4'-disulfonyl dichloride, p,p'-Diphenyldisulfonyl chloride
4,4'-Biphenyldisulfonyl chloride (CAS 3406-84-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8Cl2O4S2 and a molecular weight of 351.225 g/mol. It is also known as 4,4'-Diphenyldisulfonyl chloride, 4,4'-Diphenyldisulfonyl dichloride and Biphenyl-4,4'-disulfonyl dichloride. Key properties include a melting point of 205-208 °C(lit.), a boiling point of 476.7±38.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 242.1±26.8 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3406-84-6
- Jingsj CID
- J-36225-8
- Molecular Formula
- C12H8Cl2O4S2
- Chinese Name
- 4,4'-联苯二磺酰氯
- Molecular Weight
- 351.225 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 205-208 °C(lit.) |
|---|---|
| Boiling Point | 476.7±38.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 242.1±26.8 °C |
| Exact Mass | 349.924103 |
| PSA | 85.04000 |
| LogP | 3.29 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.607 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2904909090 |
|---|---|
| Summary | HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated 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 4,4'-Biphenyldisulfonyl chloride?
The CAS number of 4,4'-Biphenyldisulfonyl chloride is 3406-84-6.
What are the molecular formula and molecular weight of 4,4'-Biphenyldisulfonyl chloride?
4,4'-Biphenyldisulfonyl chloride has molecular formula C12H8Cl2O4S2 and molecular weight 351.225 g/mol.
Is 4,4'-Biphenyldisulfonyl chloride hazardous?
4,4'-Biphenyldisulfonyl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 4,4'-Biphenyldisulfonyl chloride?
For 4,4'-Biphenyldisulfonyl chloride, Upstream Products: Biphenyl, [1,1'-Biphenyl]-4,4'-disulfonic acid, [1,1'-biphenyl]-4,4'-dithiol; Downstream Products: [1,1'-biphenyl]-4,4'-dithiol, BI-P-TOLYL.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4'-Biphenyldisulfonyl chloride (CAS 3406-84-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36225-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.