1,2,3,4,4A,5,6,7-OCTAHYDRO-2,5,5-TRIMETHYL-2-NAPHTHOL

50

Moderate

CAS Number: 41199-19-3

About 1,2,3,4,4A,5,6,7-OCTAHYDRO-2,5,5-TRIMETHYL-2-NAPHTHOL

A tricyclic sesquiterpene alcohol (santanol derivative) with skin irritation and environmental toxicity warnings, used at controlled concentrations in fine fragrances.

Detailed Analysis

1,2,3,4,4A,5,6,7-Octahydro-2,5,5-trimethyl-2-naphthol (also known as alpha-santalol derivative or similar tricyclic santalane-type structure) carries H315 (skin irritation) and H412 (aquatic chronic toxicity) classifications. The tricyclic sesquiterpene structure is related to sandalwood-type fragrances but with skin irritating potential. It is not listed in EU Annex III restrictions but must be used within IFRA guidelines. The sandalwood/santalol family has extensive use in perfumery with established safety at controlled concentrations.

Known Concerns

  • ⚠ Skin irritation (H315)
  • ⚠ Aquatic chronic toxicity (H412)
  • ⚠ Fragrance allergen consideration

Safety Score

50

Moderate

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.