4,4'-Methylenebis(2-ethylaniline)

10

Avoid

CAS Number: 19900-65-3

About 4,4'-Methylenebis(2-ethylaniline)

A methylene-dianiline derivative with documented carcinogenic (H351) and reprotoxic potential, classified as a substance of very high concern under EU REACH.

Detailed Analysis

4,4'-Methylenebis(2-ethylaniline) is an aromatic amine with a structure related to 4,4'-methylenedianiline (MDA), a known carcinogen. ECHA classifies it with H302 (harmful if swallowed), H351 (suspected carcinogen), and H400/H410 (aquatic toxicity). It is a SVHC candidate under EU REACH due to its carcinogenic and reprotoxic properties, making it categorically unsuitable for cosmetic applications.

Known Concerns

  • ⚠ Suspected carcinogen (H351)
  • ⚠ SVHC under REACH
  • ⚠ Harmful if swallowed (H302)
  • ⚠ Highly toxic to aquatic life

Safety Score

10

Avoid

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.