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Cosmetic antioxidants

Thiotaurine

Also known as 2-Aminoethanethiosulfonic acid, AETS, 2-hydroxysulfonothioylethanamine

CAS 2937-54-4Formula C2H7NO2S2Molar mass 141.22 g/molEC 220-918-7
5 suppliers listed
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Thiotaurine chemical structure, C2H7NO2S2, CAS 2937-54-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2937-54-4
Formula
C2H7NO2S2
Molar mass
141.22 g/mol
EC number
220-918-7
HS code
293090
Category
Cosmetic antioxidants

What is Thiotaurine?

Plain description, key identifiers and synonyms

Thiotaurine is a chemical substance with the molecular formula C2H7NO2S2 and a molar mass of 141.22 g/mol. Its CAS registry number is 2937-54-4. The IUPAC name is 2-hydroxysulfonothioylethanamine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxysulfonothioylethanamine
CAS number
2937-54-4 CAS number cross-checkedOther or deprecated CAS: 31999-89-0
EC numbers
220-918-7, 250-888-0
Molecular formula
C2H7NO2S2
UNII
NQZ2D7AO62
INCI name
THIOTAURINE
InChIKey
SHWIJIJNPFXOFS-UHFFFAOYSA-N
InChI
InChI=1S/C2H7NO2S2/c3-1-2-7(4,5)6/h1-3H2,(H,4,5,6)
SMILES (canonical and isomeric)
C(CS(=O)(=S)O)N

Synonyms

  • 2-Aminoethanethiosulfonic acid
  • AETS
  • 2-hydroxysulfonothioylethanamine
  • Sodium 2-aminosulphonothioacetate
  • Ethanesulfonothioic acid, 2-amino-, monosodium salt
  • 2-Aminoethane-1-sulfonothioic O-acid
  • 2-aminoethanesulfonothioic acid
  • 2-Aminoethane-1-sulfonothioic S-acid

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
141.22 g/molcalc.
Exact mass
140.9918 Dacalc.
LogP (octanol/water)
-0.84calc.
Topological polar surface area
63.32 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
1calc.
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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Thiotaurine suppliers

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

All 5 suppliers
5 of 5 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

5 suppliers in 2 countries

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Thiotaurine 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.

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name THIOTAURINE(antioxidant)

Functional uses

  • Antioxidant

Cosmetic functions

  • Antioxidant

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Thiotaurine, based on the data on this page

What is Thiotaurine?

Thiotaurine is a chemical substance with the molecular formula C2H7NO2S2 and a molar mass of 141.22 g/mol. Its CAS registry number is 2937-54-4. The IUPAC name is 2-hydroxysulfonothioylethanamine.

What is the CAS number of Thiotaurine?

The CAS registry number of Thiotaurine is 2937-54-4. Other or deprecated CAS numbers: 31999-89-0.

What is the molecular formula and weight of Thiotaurine?

The molecular formula of Thiotaurine is C2H7NO2S2 and its molar mass is 141.22 g/mol.

What is Thiotaurine used for?

Use classes: Cosmetics.

Is Thiotaurine hazardous?

No GHS hazard classification for Thiotaurine is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Thiotaurine?

Thiotaurine is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Thiotaurine?

CompoundList lists 5 suppliers of Thiotaurine in China and Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Thiotaurine?

Suppliers quote Thiotaurine 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 Thiotaurine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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