Aluminum Acetate

Also known as: Bis(acetato-O)hydroxyaluminium, Basic aluminum acetate, EINECS 205-518-2, Basisches aluminium-acetat, Hydrosal (+2 more)

INCI: ALUMINUM ACETATE

Aluminum Acetate (CAS 142-03-0) is a cosmetic cosmetic ingredient functioning as Astringent, Buffering. NOAEL 30 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.

View industrial chemical safety profile for CAS 142-03-0 →

Auto-generated CPSR Part A draft with source citations
Function
Astringent, Buffering
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
C4H7AlO5
MW
162.08 g/mol
EC Number
205-518-2
PubChem CID
10197832
IUPAC Name
aluminum;diacetate;hydroxide
InChIKey
HQQUTGFAWJNQIP-UHFFFAOYSA-K

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes FDA-recognized as OTC drug active ingredient (astringent/skin protectant). Cosmetic use permitted; no specific CIR monograph for this salt individually

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Aluminum Acetate.

Calculate MoS for your specific formulation with the MoS Calculator.

Pre-Calculated Safety Assessment

Pre-calculated NOAEL → SED → MoS audit trail for Aluminum Acetate across SCCS product categories, with measured dermal absorption where available.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

Additional Ingredient Properties

1 property record from structured ingredient metadata.

deodorant
{"cas_number": "139-12-8", "ingredient_class": "astringent", "mechanism_of_action": "pH_modification", "antiperspirant_efficacy_sweat_reduction_pct": "0", "deodorant_efficacy_hours": "8-16", "odor_reduction_pct": "40-60", "bacteriostatic": "limited", "bactericidal": "no", "target_bacteria": "limited", "microbiome_impact": "neutral", "axillary_microbiome_effect": "varies by ingredient", "MIC_value_…

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Astringent Biocide

Expert Verdict

Expert safety assessment and concern-level summary for Aluminum Acetate.

Known Synonyms

Bis(acetato-O)hydroxyaluminium Basic aluminum acetate EINECS 205-518-2 Basisches aluminium-acetat Hydrosal Hydroxyoaluminium diacetat UNII-FGL8577C9S

Chemical Function

Biocide Astringent

Regulatory Lists

inert_ingredient; Pesticides inert_ingredient; non_food_use; Pesticides

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

ChEMBL ID
CHEMBL1532734
View full pharmaceutical profile →

Frequently Asked Questions

Is Aluminum Acetate safe in cosmetics?

Aluminum Acetate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.

Is Aluminum Acetate allowed in the EU?

Aluminum Acetate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Aluminum Acetate do in cosmetics?

Aluminum Acetate functions as: Astringent, Buffering. It is classified as a cosmetic ingredient in our database. CAS number: 142-03-0.

Is Aluminum Acetate used outside cosmetics?

Aluminum Acetate also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Aluminum Acetate have different safety status in cosmetics vs industrial chemicals?

Aluminum Acetate is classified GHS Danger (H318, H400, H412) in the chemicals database but is allowed in EU cosmetics.

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