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m-Aminophenol and its salts

CAS 591-27-5/ 51-81-0 / 68239-81-6 /38171-54-9
25

Safety score · 0–100

Caution

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

M-Aminophenol and its salts is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

m-Aminophenol is an important intermediate in the synthesis of azo dyes and is used as a hair dye precursor, but it carries significant hazard classifications including H302 (harmful if swallowed), H312 (harmful in contact with skin), H315 (causes skin irritation), H317 (may cause allergic skin reaction), H319 (causes serious eye irritation), H332 (harmful if inhaled), H400/H411 (aquatic toxicity). These hazard statements collectively indicate it is a skin sensitizer and acute toxicant. Under EU Regulation 1223/2009, aromatic amine hair dye intermediates with such hazard profiles are restricted or banned in cosmetic hair dye applications, with specific concentration limits in Annex III. The compound can cause severe allergic reactions in consumers who have been sensitized to it.

Skin benefits

  • Used as hair dye intermediate in controlled professional formulations

Known concerns

  • Skin and respiratory sensitizer
  • Acute oral and dermal toxicity
  • EU hair dye restrictions apply
  • Environmental toxicity

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related others

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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.