What is it?

“4-Aminobiphenyl is an amine derivative of biphenyl. It has the chemical formula C12H11N.” Wikipedia

What are the effects?

This substance belongs to the groups:

The European Chemicals Agency (ECHA) identifies that the substance “may cause cancer and is harmful if swallowed.”

The substance is on ECHA Candidate List of “Substances of very High Concern.”

4-Aminobiphenyl contains amines and may also form toxic nitrosamines in products.


Even though it is not listed on the list of ingredients, products with 4-Aminobiphenyl may contain impurities from:

  • Nitrosamines –  Linked to endocrine disruption, cancer, organ system toxicity, and is prohibited to use in cosmetics in the EU and Canada.

How is it used?

4-Aminobiphenyl is mainly used in the production of dyes and pigments, most commonly for leather and textiles.

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