beauty
cleaning

Acetoacetic acid

CAS 541-50-4

Also registered as 2 other CAS numbers

4387-93-3 · 161879-89-6

Concern score

Not assessed — no hazard data yet.

Acetoacetic acid in plain language

What it is: Also known as 3-Oxobutanoic acid · Butanoic acid, 3-OXO- · .alpha.-ketobutyrate · 3-Acetonedicarboxylic acid · 3-KETOBUTYRATE · 3-Ketobutyric acid
Show all 21 names
3-OXO-BUTYRIC acid · 3-Oxobutyric acid · 3-ketobutanoic acid · 3-oxo-butanoic acid · 3-oxobutanate · 3-oxobutanoicacid · Aae · Acetessigsaeure · Acetic acid, acetyl- · Acetoacitic acid · Acetonecarboxylic acid · acetylacetic acid · beta-ketobutyric acid · diacetate · diacetic acid
What it does: We don't have a plain-language description for Acetoacetic acid yet.
Is it a concern?: We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Acetoacetic acid appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Personal care.
- EPA CPDat observed this chemical in 2 composition records across product categories including Personal care.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Acetoacetic acid. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Acetoacetic acid 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 December 2017
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 →

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 Acetoacetic acid in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Personal care

See products using Acetoacetic acid →

Catalog

Found in these products

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

See all 13 →Find products without it →