Sodium Isethionate with CAS 1562-00-1 - Image 2

Sodium Isethionate with CAS 1562-00-1

Product name:Sodium isethionate
CAS:1562-00-1
EINECS:216-343-6
MF:C2H5NaO4S
MW:148.11
Synonym:; 2-Hydroxyethanesulfonic Acid Sodium Salt Isethionic Acid Sodium Salt ; Sodium 2-Hydroxyethanesulfonate; SodiuM Isethionate (SI); SodiuM isethionate (SHES)
; 2-Hydroxyethanesulfonic acid sodiuM salt (SHES); Isethionic acid sodiuM salt 98%; 2-Hydroxyethanesulfo; 2-hydroxyethyl sulfonate; Sodium hydroxyethyl; Sodiumhydroxyethylsulfonate; ISETHIONIC ACID SODIUM SALT; HYDROXYETHYLSULFONIC ACID SODIUM SALT; SODIUM 2-HYDROXYETHANESULFONATE; SODIUM ISETHIONATE; 2-HYDROXYETHANESULFONIC ACID; 2-HYDROXYETHANESULFONIC ACID SODIUM SALT; 2-Hydroxyethanesulphonic acid sodium salt; Hydroxyethanes

What is Sodium isethionate with CAS 1562-00-1

Sodium Isethionate (CAS 1562-00-1) is a mild, anionic surfactant widely used in personal care and cleansing formulations. Also known as isethionic acid sodium salt or sodium 2-hydroxyethyl sulfonate, it features excellent water solubility, high compatibility with other surfactants, and a gentle, skin-friendly profile.

This compound is often used as a raw material in the production of mild surfactants such as Sodium Cocoyl Isethionate (SCI), which are popular in sulfate-free shampoos, facial cleansers, and body washes.

Specification

Items	Specification
Appearance	A colorless lucidly liquid
Assay(%)	54.00 Min
Water(%)	40.0 Min
Sulphate(%)	0.30 Max
pH(25℃)	8.00-10.50

Applications

1. Personal Care and Cleansing Products

Sodium isethionate is a key ingredient in syndet (synthetic detergent) bars, facial cleansers, and shampoos. It provides mild yet effective cleansing and helps maintain skin moisture without irritation. When reacted with fatty acids, it forms Sodium Cocoyl Isethionate (SCI) — a gentle surfactant highly favored in sulfate-free formulations.

2. Hair and Skin Care Formulations

Thanks to its excellent skin compatibility and low irritation potential, Isethionic acid sodium salt is used in:

Moisturizing body washes
Baby shampoos and soaps
Conditioning shampoos and facial foams

It leaves skin feeling soft and smooth after washing.

3. Industrial and Synthetic Applications

Sodium 2-hydroxyethyl sulfonate can serve as a hydrophilic intermediate in the synthesis of other surfactants, detergents, and specialty chemicals. It helps improve the water solubility and mildness of the final formulations.

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