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Cosmetic ingredients

Taurine

Also known as 2-aminoethanesulfonic acid, L-Taurine, Ethanesulfonic acid, 2-amino-

CAS 107-35-7Formula C2H7NO3SMolar mass 125.15 g/molEC 203-483-8
GHS signal word: Warning. Pictograms: Harmful or irritant 269 suppliers listed Drug substance
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Taurine chemical structure, C2H7NO3S, CAS 107-35-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless crystals
Melting point
325 °C
Density
1.7 g/cm³
Solubility
In water, 94.9 g/L at 25 °C
HS code
292119
Category
Cosmetic ingredients
Illustrative photo, colourless crystals beside a jumbo bulk bag in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Taurine?

Plain description, key identifiers and synonyms

Taurine is an amino sulfonic acid that is the 2-amino derivative of ethanesulfonic acid. It is a naturally occurring amino acid derived from methionine and cysteine metabolism. An abundant component of fish- and meat-based foods, it has been used as an oral supplement in the treatment of disorders such as cystic fibrosis and hypertension. It has a role as an antioxidant, a nutrient, a radical scavenger, a glycine receptor agonist, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a human metabolite. It is a conjugate acid of a 2-aminoethanesulfonate. It is a tautomer of a taurine zwitterion.

Taurine is a biologically significant aminosulfonic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-aminoethanesulfonic acid
CAS number
107-35-7 CAS number cross-checkedOther or deprecated CAS: 91105-79-2
EC number
203-483-8
Molecular formula
C2H7NO3S
UNII
1EQV5MLY3D
MDL number
MFCD00008197
INCI name
TAURINE
InChIKey
XOAAWQZATWQOTB-UHFFFAOYSA-N
InChI
InChI=1S/C2H7NO3S/c3-1-2-7(4,5)6/h1-3H2,(H,4,5,6)
SMILES (canonical and isomeric)
C(CS(=O)(=O)O)N

Synonyms

  • 2-aminoethanesulfonic acid
  • L-Taurine
  • Ethanesulfonic acid, 2-amino-
  • tauphon
  • 2-Aminoethylsulfonic acid
  • aminoethylsulfonic acid
  • 2-Sulfoethylamine
  • Aminoethanesulfonic acid
  • O-Due
  • 2-aminoethane-1-sulfonic acid
  • taufon
  • beta-Aminoethylsulfonic acid
  • Taurinum
  • Taurina
  • Taukard
  • 2-azaniumylethanesulfonate
  • L-Taurine High
  • L-Taurine 7421
  • L-Taurine High 7422
  • Taurine (2-Aminoethane-1-sulfonic acid)
  • 1-Aminoethane-2-sulfonic acid
  • Taurate
  • b-Aminoethylsulfonic acid
  • 2-aminoethane sulfonic acid
  • Taurine (usp-rs)
Show all 31 synonyms
  • Aminoethylsulfonic acid (JAN)
  • 2-amino-ethanesulfonic acid
  • 2-AminoethanesulfonicAcid
  • Taurineold
  • Taurine CRS
  • Aminoethylsulfonate

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

Appearance
Colorless crystalsexp.
Odour
Odorlessexp.
Taste
Slightly acidic tasteexp.
Melting point
325 °Cexp.
Density
1.7 g/cm³exp.
Solubility
In water, 94.9 g/L at 25 °Cexp.

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
125.15 g/molcalc.
Exact mass
125.0147 Dacalc.
LogP (octanol/water)
-1.17calc.
Topological polar surface area
80.39 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
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

Taurine suppliers

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

All 269 suppliers
30 of 30 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

269 suppliers in 34 countries

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Taurine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Derivatives of taurine, especially fatty acid derivatives, are important wetting, washing, and dispersion agents in body and household cleaning agents, and also in textile processing.

Biochemical research, pharmaceuticals, wetting agents.

Nutritional supplement.

Cosmetic compositions.

Use classes: Processing Aids and Additives, Safer Chemical Classes, Cosmetics.

Cosmetic ingredient, INCI name TAURINE(buffering)

Roles

  • Escherichia coli metabolite
  • Saccharomyces cerevisiae metabolite
  • agonist
  • antihypertensive agent
  • antineoplastic agent
  • antioxidant
  • antipsychotic agent
  • cardiovascular drug
  • central nervous system depressant
  • central nervous system drug
  • food component
  • glycine receptor agonist
  • human metabolite
  • hypoglycemic agent
  • immunomodulator
  • immunosuppressive agent
  • metabolite
  • mouse metabolite
  • nutrient
  • pharmaceutical
  • physiological role
  • psychotropic drug
  • radical scavenger
  • tranquilizing drug

Functional uses

  • Flavouring and nutrient
  • Fragrance
  • Processing aids not otherwise specified
  • pH regulating agent

Cosmetic functions

  • Buffering

How it is made

Taurine is synthesised starting from ethylene oxide and sodium bisulphite. Subsequently, liquid ammonia and sulphuric acid are added. The product is then decolorised, purified, crystallised, centrifuged, dried, sieved and blended with the carrier to obtain the additive.

Ethyleneimine reacts rapidly with sulfurous acid to give taurine in high yield.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • Active ingredient in FDA approved drug labels

United States

  • Safer Choice ingredient list (USA)
  • 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 Taurine is traded under.

HS 2921.19Indicative HS code

Acyclic monoamines and their derivatives, salts thereof, other

World exports in 2024
$1.21B
+4.0% vs 2023, imports $1.16B
2019 to 2024
Top exporters
  1. China35.5%
  2. United States17.9%
  3. Germany16.4%
Top importers
  1. United States14.1%
  2. South Korea9.7%
  3. Japan8.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Taurine?

Taurine is an amino sulfonic acid that is the 2-amino derivative of ethanesulfonic acid. It is a naturally occurring amino acid derived from methionine and cysteine metabolism.

What is the CAS number of Taurine?

The CAS registry number of Taurine is 107-35-7. Other or deprecated CAS numbers: 91105-79-2.

What is the molecular formula and weight of Taurine?

The molecular formula of Taurine is C2H7NO3S and its molar mass is 125.15 g/mol.

What is Taurine used for?

Derivatives of taurine, especially fatty acid derivatives, are important wetting, washing, and dispersion agents in body and household cleaning agents, and also in textile processing. Biochemical research, pharmaceuticals, wetting agents. Nutritional supplement. Cosmetic compositions.

Is Taurine hazardous?

Taurine carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Taurine?

Taurine is usually classified under HS code 292119 (Acyclic monoamines and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Taurine?

CompoundList lists 269 suppliers of Taurine in China, United States, India, Germany and 30 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Taurine in India?

17 suppliers in India list Taurine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Taurine?

Suppliers quote Taurine 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 Taurine

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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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