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Beryllium oxide (BeO)

CAS 1304-56-9

Also registered as 5 other CAS numbers

61279-73-0 · 61279-74-1 · 61279-75-2 · 61279-76-3 · 2519747-41-0

Beryllium oxide (BeO) chemical structure

Concern score

Not assessed — no hazard data yet.

Beryllium oxide (BeO) in plain language

What it is

Also known as Beryllium oxide · Beryllium oxide (beryllia) · (Oxido)beryllium · Beryllia · beryllium oxygen(2-) · Beryllium monoxide

Show all 11 names

Bromelite · Thermalox 995 · Un 1566 (dot) · beryllium oxide (suspected human carcinogen by ntp & iarc) · beryllium oxide (as beryllium)

What it does

We don't have a plain-language description for Beryllium oxide (BeO) yet.

Recorded functional uses: Surface modifier · Tile body

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

Regulation

No restrictions found. Beryllium oxide (BeO) appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 48 composition records across product categories including Laboratory supplies, Personal care, Batteries. EPA CPDat classifies this chemical for functional uses including tile body, Surface modifier.
    • EPA CPDat observed this chemical in 48 composition records across product categories including Laboratory supplies, Personal care, Batteries. EPA CPDat classifies this chemical for functional uses including tile body, Surface modifier.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 Beryllium oxide (BeO). 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 Beryllium oxide (BeO) 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 January 27, 2023

    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 Beryllium oxide (BeO) in a product composition. These are source records, not Greenveil catalog products.

Source records

48

Named organisations

2

Laboratory suppliesPersonal careBatteriesOther direct contact consumer goodsLandscape/yardIndustrial products

Typical roles

Surface modifierTile body
See products using Beryllium oxide (BeO) →