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Ethanol, 2,2′-[(2-nitro-1,4-phenylene)diimino]bis-(9CI)

CAS 84041-77-0;
32

Safety score · 0–100

Caution

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

About

A bis-imino linked nitro-para-phenylenediamine used as an oxidative hair dye intermediate; carries multiple irritation hazard statements and EU restriction II/1263 with a 1.5% concentration cap.

This compound is a dimeric nitro-para-phenylenediamine formed by linking two nitro-phenylene diamine units via imino bridges, used as an oxidative hair dye intermediate. It carries three GHS hazard statements (H315, H319, H335) for irritation and is listed in EU Annex II/1263, with a maximum permitted concentration of 1.5% (effective September 2017) in hair dye formulations. The para-nitro arrangement and diimino structure contribute to its sensitisation and irritation profile.

Known concerns

  • Skin irritation hazard (H315)
  • Eye irritation hazard (H319)
  • Respiratory irritation hazard (H335)
  • EU Annex II restriction (II/1263) with 1.5% concentration cap

References

EU

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.