Fragrance avoidance
No fragrance-linked caution surfaced in the current profile.
This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.
- industrial
Sulfurous acid, potassium salt (1:1)
CAS 4429-42-9
Biocide
Concern score
Not assessed — no hazard data yet.
Why it's flagged
EPA CPDat observed this chemical in 27 composition records across product categories including Laboratory supplies, Specialty occupational products.
Regulation
No restrictions found. Sulfurous acid, potassium salt (1:1) appears in these published regulatory listings.
- commercial_presence
- cpdat_category:industrial
- definition_level:complete
- definition_type:primary
- ingredient_type:ingredient substance
- occupational_presence
- substance_class:chemical
- substance_type:chemical
USEPAcommercial use observedEPA CPDat observed this chemical in 27 composition records across product categories including Laboratory supplies, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Biocide.
- EPA CPDat observed this chemical in 27 composition records across product categories including Laboratory supplies, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Biocide.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Evidence
No graded sources yet for Sulfurous acid, potassium salt (1:1). We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.
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.
Good fit
Where it appears
Prevalence of Sulfurous acid, potassium salt (1:1) in our catalog (epa_cpdat).
Products
27
Brands
1
Laboratory suppliesSpecialty occupational products
Typical roles
Biocide