Indole

Indole is perfumery's great shapeshifter. In tiny doses, it is the intoxicating, narcotic sweetness at the heart of jasmine, tuberose, and orange blossom - lush, heady, and deeply seductive. Push the concentration higher, and its character flips dramatically toward animalic, fecal, and mothball-like territory. This dual personality is precisely what makes indole so fascinating: it is the molecule that gives white flowers their dangerous, almost indecent allure.

Origin and Extraction

Indole occurs naturally in many white flowers - jasmine absolute contains about 2.5% pure indole, which is a major contributor to its rich, voluptuous character. It is also found in orange blossom, tuberose, and gardenia. Beyond perfumery, indole is present in coal tar and plays important roles in biology as part of the amino acid tryptophan. For perfumery use, it is produced synthetically, giving perfumers precise control over its concentration.

History and Culture

Indole has been known to chemistry since the 19th century, but its role in perfumery is as old as the use of natural flower absolutes. Every great jasmine perfume in history owes part of its magic to indole's presence. The molecule sits at a cultural crossroads between beauty and taboo - it connects the sublime fragrance of flowers to the earthiest aspects of biology, reminding us that attraction and repulsion are often just a matter of concentration.

Chemistry and Molecular Structure

Indole has the molecular formula C8H7N and consists of a benzene ring fused to a five-membered pyrrole ring containing nitrogen (CAS 120-72-9). This bicyclic heteroaromatic system has a conjugated 10-electron system that follows Huckel's rule. Beyond perfumery, the indole skeleton is one of the most important structures in biochemistry - it forms the core of tryptophan, serotonin, and melatonin, and appears in countless alkaloids from strychnine to psilocybin.

Fragrances with Indole

Aloha Senses

Gigi - Forever Young

5.5/10(2)

MuskFloral

Floral Amber Musk

Sample from €9

€13850ml