Poly(4-styrenesulfonic acid)

聚(4-苯乙烯磺酸)

Also known as: Polystyrenesulfonic acid, Poly(4-vinylbenzenesulfonic acid), Sulfonated polystyrene, Poly(styrene sulfonic acid), 4-ethenyl-benzenesulfonic acid homopolymer, Benzenesulfonic acid, 4-ethenyl-, homopolymer, Tolevamer

Poly(4-styrenesulfonic acid) (CAS 28210-41-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O3S and a molecular weight of 184.21200 g/mol. It is also known as Polystyrenesulfonic acid, Poly(4-vinylbenzenesulfonic acid) and Sulfonated polystyrene. Key properties include a melting point of 1°C, a boiling point of 100°C and a density of 1.11 g/mL at 25 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28210-41-5
Jingsj CID
J-35490-1
Molecular Formula
C8H8O3S
Chinese Name
聚(4-苯乙烯磺酸)
Molecular Weight
184.21200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point1°C
Boiling Point100°C
Density1.11 g/mL at 25 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of Poly(4-styrenesulfonic acid)?

The CAS number of Poly(4-styrenesulfonic acid) is 28210-41-5.

What are the molecular formula and molecular weight of Poly(4-styrenesulfonic acid)?

Poly(4-styrenesulfonic acid) has molecular formula C8H8O3S and molecular weight 184.21200 g/mol.

Is Poly(4-styrenesulfonic acid) hazardous?

Poly(4-styrenesulfonic acid) has GHS signal word Danger.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Poly(4-styrenesulfonic acid) (CAS 28210-41-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35490-1 (accessed 2026-10-23).

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