# 1H-​Pyrazole-​4,​5-​diamine, 1-​[(4-​chlorophenyl)​methyl]​-​, sulfate (2:1)

URL: https://app.greenveil.ai/ingredients/ingredient_cas_163183_00_4
Categories: beauty, industrial
Functions: Dye
Identifier: 163183-00-4

> 1H-​Pyrazole-​4,​5-​diamine, 1-​[(4-​chlorophenyl)​methyl]​-​, sulfate (2:1) is used as dye. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: 4,5-Diamino-1-((4-chlorophenyl)methyl)-1H-pyrazole sulfate, when used as a substance in hair dye products is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: banned — Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
- US: commercial use observed — EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Dye.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._