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Indolene (Schiff base)

7-hydroxy-3,7-dimethyloctanal; 1H-indole

Indolene, Indolall

Indole condensation product · C₁₈H₂₇NO₂

Chemical structure of Indolene (Schiff base)
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
68908-82-7
Molecular formula
C₁₈H₂₇NO₂
Molecular weight
289.42 g/mol
Origin
Synthetic
Odor family
Floral
Note
Base
Aroma
White floral, jasmine and orange blossom with a softened animalic indole note.

History

Indolene is the condensation product of hydroxycitronellal with indole. It gives the indolic side of white flowers with less harshness than free indole.

In perfumery

Used in the base of jasmine, orange blossom and tuberose; may discolour products.

Connections

EvokesJasmine, Indole
Found in natureIndole (component)

Regulatory status

Releases an allergen
IFRA 51
No dedicated IFRA Standard in the IFRA library as of Amendment 51.
EU CosReg
No specific entry in Annex II or III of Regulation (EC) 1223/2009.
EU allergen 2023/1545
Not on the list of fragrance allergens requiring labelling, including after Regulation (EU) 2023/1545.

Sources

  1. NCI/CADD Chemical Identifier Resolver, CAS 68908-82-7
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III
  4. The Good Scents Company: indolall / indolene, CAS 68908-82-7