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
4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
CAS 155601-30-2
Dye
Concern score
Not assessed — no hazard data yet.
Why it's flagged
EPA CPDat observed this chemical in 28 composition records across product categories including Personal care.
Regulation
No restrictions found. 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate appears in these published regulatory listings.
- commercial_presence
- consumer_product_presence
- cpdat_category:beauty
- definition_level:complete
- definition_type:primary
- ingredient_type:ingredient substance
- substance_class:chemical
- substance_type:chemical
USEPAcommercial use observedEPA CPDat observed this chemical in 28 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Dye.
- EPA CPDat observed this chemical in 28 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Dye.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 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate. We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Good fit
Where it appears
Prevalence of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate in our catalog (epa_cpdat).
Products
28
Brands
2
Personal care
Typical roles
Dye
