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Carboxylic acids and anhydrides

DL-Carnitine

Also known as Carnitine, Carnitina, 3-hydroxy-4-(trimethylazaniumyl)butanoate

CAS 406-76-8Formula C7H15NO3Molar mass 161.20 g/molEC 206-976-6
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DL-Carnitine chemical structure, C7H15NO3, CAS 406-76-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
406-76-8
Formula
C7H15NO3
Molar mass
161.20 g/mol
EC number
206-976-6
HS code
292390
Category
Carboxylic acids and anhydrides

What is DL-Carnitine?

Plain description, key identifiers and synonyms

Carnitine is an amino-acid betaine that is butanoate substituted with a hydroxy group at position C-3 and a trimethylammonium group at C-4. It has a role as a mouse metabolite and a human metabolite. It is functionally related to a butyrate. It is a conjugate base of a carnitinium.

DL-Carnitine is an aminoacid active in mitochondria.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-hydroxy-4-(trimethylazaniumyl)butanoate
CAS number
406-76-8Other or deprecated CAS: 461-06-3, 541-15-1
EC number
206-976-6
Molecular formula
C7H15NO3
UNII
S7UI8SM58A
InChIKey
PHIQHXFUZVPYII-UHFFFAOYSA-N
InChI
InChI=1S/C7H15NO3/c1-8(2,3)5-6(9)4-7(10)11/h6,9H,4-5H2,1-3H3
SMILES (canonical and isomeric)
C[N+](C)(C)CC(CC(=O)[O-])O

Synonyms

  • Carnitine
  • Carnitina
  • 3-hydroxy-4-(trimethylazaniumyl)butanoate
  • D,L-carnitine
  • (3-Carboxy-2-hydroxypropyl)trimethylammonium hydroxide inner salt
  • Carnitinum
  • (3-carboxy-2-hydroxypropyl)-trimethylazanium
  • Carnitine dl-
  • (3-carboxy-2-hydroxypropyl)trimethylazanium
  • 3-hydroxy-4-(trimethylammonio)butanoate
  • Carnitine DL-form
  • L(-)-Carnitine
  • Carnitine, dl-
  • 3-hydroxy-4-trimethylammoniobutanoate
  • (+/-)-Carnitin
  • 1-Propanaminium, 3-carboxy-2-hydroxy-N,N,N-trimethyl-, inner salt,(2R)-
  • Levocarnitine, Vitamin B(T)
  • (+-)-Carnitine
  • Excitine
  • Novaine
  • Vitacarn
  • Carnum
  • Novain
  • ()-Carnitin
  • Carnitine (L-Carnitine)
Show all 29 synonyms
  • Carnitine, (+/-)-
  • L-carnitine (Levocarnitine)
  • (1)-(3-Carboxy-2-hydroxypropyl)trimethylammonium hydroxide
  • (C0) capital ES, Cyrillicarnitine

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
161.20 g/molcalc.
Exact mass
161.1052 Dacalc.
LogP (octanol/water)
-1.81calc.
Topological polar surface area
60.36 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.86calc.
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.

DL-Carnitine suppliers

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

All 39 suppliers
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Where suppliers are based

39 suppliers in 8 countries

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DL-Carnitine 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

Use classes: Cosmetics.

Roles

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

Functional uses

  • Anti-static agent
  • Cleaning agent
  • Foamant
  • Softener and conditioner
  • Surfactant (surface active agent)
  • Thickening agent
  • Viscosity modifier

Pharmacology

Carnitine is an amino acid derivative. Carnitine facilitates long-chain fatty acid entry into mitochondria, delivering substrate for oxidation and subsequent energy production. Fatty acids are utilized as an energy substrate in all tissues except the brain.

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-Carnitine is traded under.

HS 2923.90Indicative HS code

Quaternary ammonium salts and hydroxides whether or not chemically defined not elsewhere classified…

World exports in 2024
$1.07B
+14.4% vs 2023, imports $1.16B
2019 to 2024
Top exporters
  1. China36.7%
  2. United States14.2%
  3. Netherlands9.4%
Top importers
  1. South Korea10.7%
  2. Germany10.1%
  3. United States9.9%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is DL-Carnitine?

Carnitine is an amino-acid betaine that is butanoate substituted with a hydroxy group at position C-3 and a trimethylammonium group at C-4. It has a role as a mouse metabolite and a human metabolite. It is functionally related to a butyrate. It is a conjugate base of a carnitinium.

What is the CAS number of DL-Carnitine?

The CAS registry number of DL-Carnitine is 406-76-8. Other or deprecated CAS numbers: 461-06-3, 541-15-1.

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

The molecular formula of DL-Carnitine is C7H15NO3 and its molar mass is 161.20 g/mol.

What is DL-Carnitine used for?

Use classes: Cosmetics.

Is DL-Carnitine hazardous?

No GHS hazard classification for DL-Carnitine 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 DL-Carnitine?

DL-Carnitine is usually classified under HS code 292390 (Quaternary ammonium salts and hydroxides, lecithins and other phosphoaminolipids…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy DL-Carnitine?

CompoundList lists 39 suppliers of DL-Carnitine in China, United States, Hong Kong, Canada and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy DL-Carnitine in India?

1 supplier in India list DL-Carnitine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of DL-Carnitine?

Suppliers quote DL-Carnitine 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 DL-Carnitine

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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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