Ammonium 2-hydroxyethanesulphonate

羟乙基磺酸铵盐

Also known as: Ammonium isethionate, Isethionic acid ammonium salt, 2-Hydroxyethanesulfonic acid ammonium salt, 2-Hydroxyethanesulfonic acid, monoammonium salt, AHES, Ammonium 2-hydroxyethanesulfonate, ammonium 2-hydroxyethanesulphonate

Ammonium 2-hydroxyethanesulphonate (CAS 57267-78-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C2H9NO4S and a molecular weight of 143.162 g/mol. It is also known as Ammonium isethionate, Isethionic acid ammonium salt and 2-Hydroxyethanesulfonic acid ammonium salt. Key properties include a melting point of 138-141 °C(lit.) and a density of 1.625g/cm3. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
57267-78-4
Jingsj CID
J-11086-6
Molecular Formula
C2H9NO4S
Chinese Name
羟乙基磺酸铵盐
Molecular Weight
143.162 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point138-141 °C(lit.)
Density1.625g/cm3
Exact Mass143.025223
PSA86.22000
LogP0.27120

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2923900090
Summary2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ammonium 2-hydroxyethanesulphonate?

The CAS number of Ammonium 2-hydroxyethanesulphonate is 57267-78-4.

What are the molecular formula and molecular weight of Ammonium 2-hydroxyethanesulphonate?

Ammonium 2-hydroxyethanesulphonate has molecular formula C2H9NO4S and molecular weight 143.162 g/mol.

Is Ammonium 2-hydroxyethanesulphonate hazardous?

Ammonium 2-hydroxyethanesulphonate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "Ammonium 2-hydroxyethanesulphonate (CAS 57267-78-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11086-6 (accessed 2026-10-28).

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