CompoundList
Sign in
Sulfur and phosphorus compounds

Isethionic acid

Also known as 2-Hydroxyethanesulfonic acid, Hydroxyethylsulfonic acid, Ethanesulfonic acid, 2-hydroxy-

CAS 107-36-8Formula C2H6O4SMolar mass 126.13 g/molEC 203-484-3
GHS signal word: Danger. Pictograms: Corrosive 17 suppliers listed
Get quotes Compare 17 suppliers
Isethionic acid chemical structure, C2H6O4S, CAS 107-36-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
107-36-8
Formula
C2H6O4S
Molar mass
126.13 g/mol
EC number
203-484-3
HS code
290559
Category
Sulfur and phosphorus compounds

What is Isethionic acid?

Plain description, key identifiers and synonyms

Isethionic acid is an alkanesulfonic acid in which the sulfo group is directly linked to a 2-hydroxyethyl group. It has a role as a human metabolite. It is a conjugate acid of an isethionate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxyethanesulfonic acid
CAS number
107-36-8 CAS number cross-checkedOther or deprecated CAS: 21561-88-6
EC number
203-484-3
Molecular formula
C2H6O4S
UNII
97J3QN9884
MDL number
MFCD00242599
InChIKey
SUMDYPCJJOFFON-UHFFFAOYSA-N
InChI
InChI=1S/C2H6O4S/c3-1-2-7(4,5)6/h3H,1-2H2,(H,4,5,6)
SMILES (canonical and isomeric)
C(CS(=O)(=O)O)O

Synonyms

  • 2-Hydroxyethanesulfonic acid
  • Hydroxyethylsulfonic acid
  • Ethanesulfonic acid, 2-hydroxy-
  • Acid, Isethionic
  • Isethionate, Sodium
  • Acid, Hydroxyethylsulfonic
  • 2-Hydroxyethanesulphonic acid
  • 2-Hydroxyethane-1-sulfonic acid
  • Ethanolsulfonic acid
  • USAF DO-14
  • (2-Hydroxyethyl)sulfonic acid
  • 2-Hydroxyethanesulfonate
  • Kyselina isethionova
  • 2-hydroxyethylsulfonic acid
  • Kyselina 2-hydroxyethansulfonova
  • 2-hydroxyethane-1-sulfonate
  • Sodium 2-hydroxyethyl sulfonate
  • 2-Hydroxyethanesulfonic acid(80% in water)
  • 2-Hydroxyethanesulfonic Acid (80% w/w in Water)
  • Ethanolsulfonate
  • Hydroxyethylsulfonate
  • 80% w/w in water
  • 2-Hydroxyethanesulphonate
  • Hydroxyethanesulfonic acid
  • (2-Hydroxyethyl)sulfonate
Show all 34 synonyms
  • 2-Hydroxyethanesulfonicacid
  • 2-oxidanylethanesulfonic acid
  • Taurolithocholic Impurity 10
  • 4-04-00-00084 (Beilstein Handbook Reference)
  • beta-hydroxyethanesulfonic acid
  • Hydroxyethanesulfonic acid (HES)
  • Isethionic acid (80% in water)
  • Isethionic acid pound 80% in water pound(c)
  • 2-Hydroxyethanesulphonic acid (80% in water)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
126.13 g/molcalc.
Exact mass
125.9987 Dacalc.
LogP (octanol/water)
-1.13calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (15)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Isethionic acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 17 suppliers
17 of 17 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

17 suppliers in 3 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Isethionic acid price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Isethionic acid is traded under.

HS 2905.59Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives of acyclic alcohols, other

World exports in 2024
$210M
+1.6% vs 2023, imports $201M
2019 to 2024
Top exporters
  1. China43.9%
  2. Germany11.6%
  3. Spain6.9%
Top importers
  1. Germany17.1%
  2. United States13.4%
  3. India * partner reported12.4%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Isethionic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Isethionic acid, based on the data on this page

What is Isethionic acid?

Isethionic acid is an alkanesulfonic acid in which the sulfo group is directly linked to a 2-hydroxyethyl group. It has a role as a human metabolite. It is a conjugate acid of an isethionate.

What is the CAS number of Isethionic acid?

The CAS registry number of Isethionic acid is 107-36-8. Other or deprecated CAS numbers: 21561-88-6.

What is the molecular formula and weight of Isethionic acid?

The molecular formula of Isethionic acid is C2H6O4S and its molar mass is 126.13 g/mol.

What is Isethionic acid used for?

Known uses and roles of Isethionic acid include building blocks in research and laboratory, animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and 1 more.

Is Isethionic acid hazardous?

Isethionic acid carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, causes serious eye damage, harmful to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Isethionic acid?

Isethionic acid is usually classified under HS code 290559 (Halogenated, sulphonated, nitrated or nitrosated derivatives of acyclic alcohols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Isethionic acid?

CompoundList lists 17 suppliers of Isethionic acid in China, United States and United Kingdom. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Isethionic acid?

Suppliers quote Isethionic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Isethionic acid

Get quotes for Isethionic acid

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Isethionic acid
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Isethionic acid with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/isethionic-acid-107-36-8" title="Isethionic acid structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Sulfur and phosphorus compounds or HS code 290559

17 suppliers
Free quotes, contact stays private
Get quotes