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Potassium 3-sulphonatopropyl acrylate

Also known as: 3-Sulfopropyl acrylate potassium salt, 2-Propenoic acid, 3-sulfopropyl ester, potassium salt (1:1), Potassium 3-(acryloyloxy)propane-1-sulfonate, Potassium sulfopropylacrylate, 3-Sulfopropyl acrylate, Acrylic acid 3-sulfopropyl ester potassium salt, SPA (misleading, do not use)

Potassium 3-sulphonatopropyl acrylate (CAS 31098-20-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H10KO5S and a molecular weight of 233.303 g/mol. Key property: a melting point of 302ºC (dec.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31098-20-1
Jingsj CID
J-13621-3
Molecular Formula
C6H10KO5S
Molecular Weight
233.303 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point302ºC (dec.)
Exact Mass232.988052
PSA91.88000
LogP0.73170

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of Potassium 3-sulphonatopropyl acrylate?

The CAS number of Potassium 3-sulphonatopropyl acrylate is 31098-20-1.

What are the molecular formula and molecular weight of Potassium 3-sulphonatopropyl acrylate?

Potassium 3-sulphonatopropyl acrylate has molecular formula C6H10KO5S and molecular weight 233.303 g/mol.

Is Potassium 3-sulphonatopropyl acrylate hazardous?

Potassium 3-sulphonatopropyl acrylate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

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

Last updated:

How to cite: Jingsj. "Potassium 3-sulphonatopropyl acrylate (CAS 31098-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13621-3 (accessed 2026-10-29).

Data for reference only; verify product details with suppliers before purchase.