Skip to content

Fragrance ingredient

2-UNDECENOL

CAS 37617-03-1
55

Safety score · 0–100

Moderate

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

2-Undecenol is an unsaturated fatty alcohol used in fragrance compositions for a fresh, waxy-citrus note. Like many unsaturated fragrance materials it can oxidize and act as an allergen.

Skin benefits

  • Provides a fresh, fatty, citrus-waxy odor in perfumery
  • Used as fragrance component in cosmetics
  • Can act as a co-solvent for other fragrance materials

Known concerns

  • Unsaturated alcohol with potential to oxidize and form sensitizing peroxides
  • Limited public safety data specific to this isomer
  • Possible fragrance allergen for sensitive users
  • Not individually reviewed by SCCS

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related fragrance ingredients

55
2-DIMETHYLBICYCLOHEPT-2-YLIDENE ETHANOL
Fragrance ingredient
 55
3,4-DIHYDRO-7-METHYLNAPHTHALENONE
Fragrance ingredient
 55
5-METHYL-ALPHA-IONONE
Fragrance ingredient
 55
CYCLAMEN ALDEHYDE DIETHYL ACETAL
Fragrance ingredient
 55
CYCLOHEXYL-4-METHYLPENTAN-2-ONE
Fragrance ingredient
 55
HEXAHYDRO-DIMETHYLSPIROMETHANONAPHTHALENE-OXIRANE
Fragrance ingredient
 55
HEXAHYDROMETHOXY-METHANOINDENE
Fragrance ingredient
 55
HOMONOPAL
Fragrance ingredient

Check your shelf

Find 2-UNDECENOL in your products.

Scan any cosmetic product with LuxSense to see if it contains 2-UNDECENOL and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.