[1,1'-Biphenyl]-4,4'-disulfonic acid
4,4'-联苯二磺酸
Also known as: 4,4'-Biphenyldisulfonic acid, 4,4'-Biphenyldisulphonic acid, 4,4'-Diphenyldisulfonic acid, Biphenyl-4,4'-disulfonic acid, DIPHENYL-P,P'-DISULFONIC ACID, 4-(4-sulfophenyl)benzenesulfonic acid, MFCD00035762, EINECS 226-169-2
[1,1'-Biphenyl]-4,4'-disulfonic acid (CAS 5314-37-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H10O6S2 and a molecular weight of 314.334 g/mol. It is also known as 4,4'-Biphenyldisulfonic acid, 4,4'-Biphenyldisulphonic acid and 4,4'-Diphenyldisulfonic acid. Key properties include a melting point of 143-145 °C(lit.), a density of 1.6±0.1 g/cm3 and a flash point of >230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5314-37-4
- Jingsj CID
- J-15521-4
- Molecular Formula
- C12H10O6S2
- Chinese Name
- 4,4'-联苯二磺酸
- Molecular Weight
- 314.334 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 143-145 °C(lit.) |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | >230 °F |
| Exact Mass | 313.991882 |
| PSA | 125.50000 |
| LogP | 0.30 |
| Refractive Index | 1.640 |
Customs & Trade Information
| HS Code | 2904100000 |
|---|---|
| Summary | 2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of [1,1'-Biphenyl]-4,4'-disulfonic acid?
The CAS number of [1,1'-Biphenyl]-4,4'-disulfonic acid is 5314-37-4.
What are the molecular formula and molecular weight of [1,1'-Biphenyl]-4,4'-disulfonic acid?
[1,1'-Biphenyl]-4,4'-disulfonic acid has molecular formula C12H10O6S2 and molecular weight 314.334 g/mol.
What are the upstream and downstream products of [1,1'-Biphenyl]-4,4'-disulfonic acid?
For [1,1'-Biphenyl]-4,4'-disulfonic acid, Upstream Products: [1,1'-biphenyl]-4,4'-dithiol, Biphenyl, 4,4'-Dibromobiphenyl; Downstream Products: 4,4'-Biphenyldisulfonyl chloride, 4,4'-Dihydroxybiphenyl, 4,4'-Biphenyldicarbonitrile.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "[1,1'-Biphenyl]-4,4'-disulfonic acid (CAS 5314-37-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15521-4 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.