Aluminium oxide
Aluminium oxide is indexed in ChEBI under CHEBI:30187, with the reported formula Al2O3. Use the source record and structural identifiers below to confirm the material you need. — ChEBI
Safety documents & references
2 indexed referencesFind a product-specific SDS
Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.
Identity & molecular properties
Source-linked values| CAS number | 1344-28-1 | ChEBI ↗ |
| Molecular formula | Al2O3 | ChEBI ↗ |
| Molar mass | 101.961 g/mol | ChEBI ↗ |
| Monoisotopic mass | 101.94782 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:30187 | ChEBI ↗ |
Names & structural identifiers
Copy any identifieraluminium oxidealuminium(III) oxideNames & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologySafety classification · Japan
NITE / Japanese governmentAluminium oxide · 738
| Endpoint | Reported classification |
|---|---|
| Specific target organ toxicity - Single exposure | Category 3 （Respiratory tract irritation） |
| Specific target organ toxicity - Repeated exposure | Category 1 (Inhalation: lung) |
Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.
Read the original NITE classificationMass ↔ amount of substance
Calculated from sourced massUses 101.961 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsAlOCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
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Sources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.