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.
- beauty
- industrial
- pharma
Diaminopyrimidine oxide
2,4-Pyrimidinediamine, 3-oxide is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.
RestrictedEU EC — restricted
Concern score
70/100High concern based on regulatory listings.
Well researched
How we scored this
This score describes the ingredient's chemical identity — its hazard profile from the published classifications and regulatory status below — not the safety of any product it appears in. Ingredients we have no hazard signal for are labelled “Not assessed” rather than scored.
Concern score 70/100 (high) · high confidence.
Regional restrictions
- EU — restricted · Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Hair products Maximum concentration: 1.5%
Where it appears
Prevalence of Diaminopyrimidine oxide in our catalog (fda_ndc).
Products
3
Typical roles
Softener and conditioner
Found in these products
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Good fit
Evidence
No graded sources yet for Diaminopyrimidine oxide. We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.
Regulatory status
Restrictions first, then routine listings from published regulatory sources.
- View source →restricted
EUEC
Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Hair products Maximum concentration: 1.5%
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 3 active drug products and 3 total products.
- FDA NDC lists this ingredient in 3 active drug products and 3 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →