Food use
Nothing to weigh for this context yet.
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.
- food
- industrial
- pharma
Sulfur trioxide
CAS 7446-11-9
Also registered as 2 other CAS numbers
12210-38-7 · 856577-62-3
Concern score
Not assessed — no hazard data yet.
Sulfur trioxide in plain language
Also known as Nisso sulfan · Sulfur oxide (SO3) · Trioxo-lambda~6~-sulfane · Q242715 · Sulfuric anhydride · Sulfuric trioxide
Show all 18 names
Schwefeltrioxid · Sulfan · Sulfite radical anion · Sulfur trioxide, contains stabilizer, >=99% · stabilized Sulfur trioxide · Sulfuric oxide · Sulphuric (acid) anhydride · Trioxyde de soufre · sulfur trioxide (sara iii) · sulfur trioxide (sara 302) · sulphur trioxide · trioxido de azufre
We don't have a plain-language description for Sulfur trioxide yet.
Recorded functional uses: Binder · Degradant/impurity
- We haven't assessed a concern score for this ingredient yet.
Regulation
No restrictions found. Sulfur trioxide appears in these published regulatory listings.
- Found in consumer products
- Pharma
- Food
- Industrial
USEPAcommercial use observedEPA CPDat observed this chemical in 54 composition records across product categories including Construction and building materials, Furniture and furnishings, Raw materials. EPA CPDat classifies this chemical for functional uses including Binder, Degradant/impurity.
- EPA CPDat observed this chemical in 54 composition records across product categories including Construction and building materials, Furniture and furnishings, Raw materials. EPA CPDat classifies this chemical for functional uses including Binder, Degradant/impurity.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 Sulfur trioxide. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
No JECFA evaluation on file.
EFSA
European Food Safety Authority
No EFSA opinion on file.
Evidence & sources
No graded research studies for Sulfur trioxide yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
Allergen profile
Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.
- SulphitesContains · Oral (ingested)
Source: chemindex_name_match
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Fragrance avoidance
Nothing to weigh for this context yet.
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 Sulfur trioxide in a product composition. These are source records, not Greenveil catalog products.
Source records
54
Named organisations
5
Construction and building materialsFurniture and furnishingsRaw materialsHome maintenanceLaboratory suppliesFood and drug
Typical roles
BinderDegradant/impurity