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Impurities and reference standards

DL-Lanthionine

Also known as 2-amino-3-(2-amino-2-carboxyethyl)sulfanylpropanoic acid, Lanthionine, DL-, Alanine, 3,3'-thiodi-, DL-

CAS 3183-08-2Formula C6H12N2O4SMolar mass 208.24 g/molEC 221-676-5
GHS signal word: Warning. Pictograms: Harmful or irritant
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DL-Lanthionine chemical structure, C6H12N2O4S, CAS 3183-08-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3183-08-2
Formula
C6H12N2O4S
Molar mass
208.24 g/mol
EC number
221-676-5
HS code
293090
Category
Impurities and reference standards

What is DL-Lanthionine?

Plain description, key identifiers and synonyms

Lanthionine is an alanine derivative in which two alanine residues are linked on their beta-carbons by a thioether linkage. It has a role as a bacterial metabolite. It is an organic sulfide, an alanine derivative and a non-proteinogenic alpha-amino acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-amino-3-(2-amino-2-carboxyethyl)sulfanylpropanoic acid
CAS number
3183-08-2 CAS number cross-checkedOther or deprecated CAS: 496-98-0, 922-55-4
EC number
221-676-5
Molecular formula
C6H12N2O4S
MDL number
MFCD00002615
InChIKey
DWPCPZJAHOETAG-UHFFFAOYSA-N
InChI
InChI=1S/C6H12N2O4S/c7-3(5(9)10)1-13-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)
SMILES (canonical and isomeric)
C(C(C(=O)O)N)SCC(C(=O)O)N

Synonyms

  • 2-amino-3-(2-amino-2-carboxyethyl)sulfanylpropanoic acid
  • Lanthionine, DL-
  • Alanine, 3,3'-thiodi-, DL-
  • Cysteine, S-(2-amino-2-carboxyethyl)-
  • DL-Cysteine, S-(2-amino-2-carboxyethyl)-
  • L-Cysteine, S-(2-amino-2-carboxyethyl)-, (R)-
  • beta,beta'-Thiodialanine
  • lanthionin
  • Bis(2-amino-2-carboxyethyl)sulfide
  • Sulfide, bis(2-amino-2-carboxyethyl)
  • Lanthionine, 96%
  • 3,3'-Thiobis(2-aminopropionic Acid)
  • cetylcysteine Impurity 21
  • Alanine, 3,3'-thiobis-
  • 922-55-4L-Lanthionine
  • Alanine, 3, 3'-thiodi-
  • S-((R)-2-amino-2-carboxyethyl)cysteine
  • 2-amino-3-(2-amino-2-carboxy-ethyl)sulfanyl-propanoic acid
  • Sulfide, bis(2-amino-2-carboxyethyl), {[R-(R*,R*)]-}
  • 2-amino-3-(2-amino-3-hydroxy-3-oxo-propyl)sulfanyl-propanoic 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
208.24 g/molcalc.
Exact mass
208.0518 Dacalc.
LogP (octanol/water)
-1.46calc.
Topological polar surface area
126.6 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
6calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
2calc.
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

DL-Lanthionine suppliers

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DL-Lanthionine 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

Roles

  • bacterial metabolite
  • metabolite
  • prokaryotic metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code DL-Lanthionine 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 DL-Lanthionine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about DL-Lanthionine, based on the data on this page

What is DL-Lanthionine?

Lanthionine is an alanine derivative in which two alanine residues are linked on their beta-carbons by a thioether linkage. It has a role as a bacterial metabolite. It is an organic sulfide, an alanine derivative and a non-proteinogenic alpha-amino acid.

What is the CAS number of DL-Lanthionine?

The CAS registry number of DL-Lanthionine is 3183-08-2. Other or deprecated CAS numbers: 496-98-0, 922-55-4.

What is the molecular formula and weight of DL-Lanthionine?

The molecular formula of DL-Lanthionine is C6H12N2O4S and its molar mass is 208.24 g/mol.

What is DL-Lanthionine used for?

Known uses and roles of DL-Lanthionine include bacterial metabolite, metabolite and prokaryotic metabolite.

Is DL-Lanthionine hazardous?

DL-Lanthionine 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 DL-Lanthionine?

DL-Lanthionine 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 DL-Lanthionine?

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What is the price of DL-Lanthionine?

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Guides for buyers

Practical guides that help when you source, ship or handle DL-Lanthionine

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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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