[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

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Physicochemical Properties

Melting Point143-145 °C(lit.)
Density1.6±0.1 g/cm3
Flash Point>230 °F

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.

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 2026-10-24).

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