Isethionic acid (HES), CAS 107-36-8, chemically 2-hydroxyethanesulfonic acid, is a bifunctional short-chain sulfonic acid containing both a hydroxyl and a sulfonic acid group. It is an intermediate for biodegradable isethionate surfactants and mild personal-care ingredients. Confirm whether the offer is neat material or aqueous solution, and agree the concentration, water, acidity and impurity profile before ordering; COA, TDS and SDS are available on request.
Isethionic Acid CAS 107-36-8
- CAS: 107-36-8
- Synonyms: Isethionic Acid; 2-Hydroxyethanesulfonic Acid; Hydroxyethylsulfonic Acid; Ethanesulfonic Acid Derivative
- Einecs: 203-484-3
- Molecular Formula: C₂H₆O₄S
- Grade: Industrial grade, 80% aqueous solution
- Package: 250 kg plastic drum
Product Description
2-Hydroxyethanesulfonic acid (isethionic acid, HES)
Synonyms: Hydroxyethylsulfonic acid; 2-Hydroxyethane-1-sulfonic acid
CAS number: 107-36-8
EINECS number: 203-484-3
Molecular formula: C₂H₆O₄S
Molecular weight: 126.13
Appearance: Liquid (typically supplied as an 80% aqueous solution)
Content: 80% (aqueous solution)
Packaging: 250 kg plastic drum
Uses: Used as an intermediate for biodegradable isethionate surfactants and mild personal-care ingredients, and for selected organic sulfonate derivatives. Confirm the intended downstream product and impurity profile before ordering.
FAQ - Technical & Supply Chain
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Q:
Is Isethionic Acid CAS 107-36-8 the same product as Sodium Isethionate?
A: No. CAS 107-36-8 identifies free isethionic acid, 2-hydroxyethanesulfonic acid, with formula C2H6O4S. Sodium isethionate is the sodium salt and has a different formula and commercial specification. -
Q:
What is Isethionic Acid used for?
A: Isethionic acid is mainly used as an intermediate for mild isethionate surfactants, such as sodium cocoyl or lauroyl isethionate, and for selected organic sulfonate derivatives. Confirm the intended downstream product and impurity profile because the free-acid and sodium-salt forms are not interchangeable. -
Q:
What physical form and concentration should be expected for Isethionic Acid?
A: The 80% product is supplied as a colourless to light-yellow liquid with density near 1.344 g/cm3 and boiling point near 226 C at 760 mmHg. Confirm assay or concentration, water, colour, acidity and related organic impurities on the same reporting basis as the quotation. -
Q:
How is Isethionic Acid commonly packaged and shipped?
A: The industrial-grade 80% aqueous solution is typically packed in 250 kg plastic drums. Select packaging compatible with the acidic liquid and destination requirements, and confirm net weight and concentration before shipment.
Ordering & Documentation
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Documents
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Quotation
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Sample & Supply
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Storage & Shipping
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