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Acetyl-L-carnitine

CAS 3040-38-8

Also registered as 4 other CAS numbers

461-77-8 · 541-68-4 · 3624-25-7 · 74832-89-6

Acetyl-L-carnitine chemical structure

Concern score

Not assessed — no hazard data yet.

Acetyl-L-carnitine in plain language

What it is

Also known as Acetylcarnitine · Acetyl carnitine · (3R)-3-(Acetyloxy)-4-(trimethylazaniumyl)butanoate · Acetylcarnitine, l- · Alcar · L-acetyl carnitine

Show all 19 names

L-acetylcarnitine · Levocarnitine acetyl · Acetate vitamin bt · (3R)-3-acetyloxy-4-(trimethylazaniumyl)butanoate · (R)-Acetylcarnitine · Acetyl-L-(-)-carnitine · Acetylcarnitine, (R)- · Carnitine, acetyl-, L- · L-Carnitine acetyl ester · L-O-Acetylcarnitine · Nicetile · O-acetyl-(R)-carnitine · Oristar acc

What it does

We don't have a plain-language description for Acetyl-L-carnitine yet.

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Acetyl-L-carnitine appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for Acetyl-L-carnitine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated 2020-08-31

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)
Openfda substance

clinicaltrials.gov

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Acetyl-L-carnitine in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

See products using Acetyl-L-carnitine →

Catalog

Found in these products

Their ingredient lists include Acetyl-L-carnitine; each product's own rating depends on its whole formula, so it is shown on the product page, not here.