The recordsAll odour descriptors

Station 5 of 13 · Perception · the record

Hay

Hay: the sweet, dry smell of drying grass, as of coumarin and tonka.

On record here, the word is carried by Coumarin. Each carrier says who uses the word and on what evidence: a source, the trade’s convention or the house’s own reading.

Read the essay · Everyday words to scent concepts: the Scent Translator

The record

Each field carries its evidence: open a chip for the source, the quoted words and the confidence. A field with nothing behind it says so and stays empty.

Term
hay
perfumery convention

the trade’s shared vocabulary; no single source

the trade’s shared vocabulary; the word as the records and sources use it

confidence B

Family
aromatic
perfumery convention

Classification of 1. top notes: a) citrus, b) aldehydic, c) fruity, d) green and e) herbaceous/herbal, 2. heart notes: a) floral light, b) floral green, c) floral fresh, d), floral fruity, e) floral heavy and f) floral woody and 3. bottom notes: a) aromatic, b) balsamic, c) moss/leather/animalic, d) musk, e) amber and f) wood.

ISO-2 · Stepanyuk A, Kirschning A · read 2026-09-30

the family name as the published classification the review gives (top, heart and bottom notes) spells it

confidence B

Definition
The sweet, dry smell of drying grass, as of coumarin and tonka.
house interpretation

the house’s own reading, labelled as such

the house’s own definition, written for this vocabulary

confidence C

Also written
hay-like
as used

the house’s own reading, labelled as such

the words the carriers below use for this term; each carrier names its own source

confidence B

Carried by
  • Coumarin (as used: “hay-like”)
    documented

    Coumarin (46) has a sweet, slightly spicy, and hay-like scent

    KLE-1 · Kleoff M, Kiler P, Heretsch P · read 2026-09-30

    confidence A

Related terms
In teaching accords

Sources

  1. ISO-2 · Stepanyuk A, Kirschning A. Synthetic terpenoids in the world of fragrances: Iso E Super® is the showcase. Beilstein J Org Chem. 2019;15:2590–2602. doi.org/10.3762/bjoc.15.252 · read 2026-09-30 · CC BY 4.0
  2. KLE-1 · Kleoff M, Kiler P, Heretsch P. Synthesis of odorants in flow and their applications in perfumery. Beilstein J Org Chem. 2022;18:754–768. doi.org/10.3762/bjoc.18.76 · read 2026-09-30 · CC BY 4.0

These records are published under CC BY 4.0.

this record as data: /data/descriptor/hay.json · version 1 · updated 2026-09-30 · confidence B