Sodium 2-hydroxyethyl sulfonate

Sodium 2-hydroxyethyl sulfonate
Names
	Preferred IUPAC name Sodium 2-hydroxyethane-1-sulfonate
Identifiers
CAS Number	1562-00-1 ;
3D model (JSmol)	Interactive image;
ChemSpider	14540;
ECHA InfoCard	100.014.858
PubChem CID	15275;
UNII	3R36J71C17 ;
CompTox Dashboard (EPA)	DTXSID7027413 ;
	InChI InChI=1S/C2H6O4S.Na/c3-1-2-7(4,5)6;/h3H,1-2H2,(H,4,5,6);/q;+1/p-1 Key: LADXKQRVAFSPTR-UHFFFAOYSA-M;
	SMILES C(CS(=O)(=O)[O-])O.[Na+];
Properties
Melting point	191 to 194 °C (376 to 381 °F; 464 to 467 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Sodium 2-hydroxyethyl sulfonate (also: sodium isethionate) is the sodium salt of 2-hydroxyethane sulfonic acid (isethionic acid), it is used as a hydrophilic head group in washing-active surfactants, known as isethionates (acyloxyethanesulfonates) due to its strong polarity and resistance to multivalent ions. It is being studied as a high production volume chemical in the "High Production Volume (HPV) Chemical Challenge Program" of the US Environmental Protection Ministry EPA.^[1]

^ Assessment Plan for Ethanesulfonic Acid, 2-Hydroxy-, Monosodium Salt (Sodium Isethionate, CAS #1562-00-1) in Accordance with the US EPA High Production Volume Chemical Challenge Program (PDF; 292 kB).

[1] Assessment Plan for Ethanesulfonic Acid, 2-Hydroxy-, Monosodium Salt (Sodium Isethionate, CAS #1562-00-1) in Accordance with the US EPA High Production Volume Chemical Challenge Program (PDF; 292 kB).

[1]