Hydrazinium dihydrogen phosphate
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A hydrazine salt with significant toxicity concerns including carcinogenic potential, not permitted for cosmetic use in the EU.
Hydrazinium Dihydrogen Phosphate contains the hydrazinium cation (N2H5+), which is derived from hydrazine, a compound with well-documented toxicological concerns. Hydrazine and its salts are classified as Category 1B carcinogens (H350 - may cause cancer) and Category 3 reproductive toxicants under CLP Regulation (EC) No 1272/2008. The EU Cosmetics Regulation Annex II specifically addresses hazardous substances, and compounds of this nature would be prohibited from intentional addition to cosmetic products.
Known concerns
- Category 1B carcinogen classification (H350)
- Category 3 reproductive toxicant
- Strong skin sensitization potential
- Prohibited in EU cosmetic products
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.