1,3-Benzenediol, 4-Chlororesorcinol

Other

35

Caution

CAS Number: 95-88-5

About 1,3-Benzenediol, 4-Chlororesorcinol

4-Chlororesorcinol — a hair dye coupler with extensive hazards: skin/respiratory sensitizer, eye damage, and environmental toxicity.

Detailed Analysis

4-Chlororesorcinol is a chlorinated dihydroxybenzene used as an oxidative hair dye coupler. GHS classifications are extensive: H302 (harmful if swallowed), H312 (harmful in skin contact), H315 (skin irritant), H317 (skin sensitizer), H318 (serious eye damage), H332 (harmful if inhaled), H335 (respiratory irritant), and H411 (toxic to aquatic life). Signal word is 'Danger'. It is one of the more hazardous commonly-used hair dye chemicals.

Known Concerns

  • ⚠ Serious eye damage (H318)
  • ⚠ Skin sensitizer (H317)
  • ⚠ Harmful by all routes (H302/H312/H332)
  • ⚠ Skin irritant (H315)
  • ⚠ Respiratory irritant (H335)
  • ⚠ Toxic to aquatic life (H411)

Safety Score

35

Caution

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.