A woody-ambery

Teaching accord A teaching accord for learning: not a commercial perfume formula, not a finished perfume, not safety-assessed; do not make it for skin.

Iso E Super is the lesson: one synthetic material carrying a whole dry, woody-ambery impression, descended from the ionones. The natural woods under it give it a body.

Read the essay · Its fingerprint in the Olfactory Genome · Its trail in the Spatial Sillage Lab · As a scent instruction (the Device API draft)

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.

Name

A woody-ambery

house interpretation

the house’s own reading, labelled as such

the house’s name for this teaching accord

confidence C

Purpose

teaching

house rule

the house’s own reading, labelled as such

the site’s rule: every accord on record is a teaching accord; the house’s own formulas are never published here

confidence B

Structure

A woody-ambery: Iso E Super’s dry, ambergris-like woods over sandalwood’s cream and vetiver’s smoke.

perfumery convention

the trade’s shared vocabulary; no single source

the trade’s convention; Iso E Super’s descriptors are documented on its record (ISO-2)

confidence B

Family

wood

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 and Kirschning (2019). Synthetic terpenoids in the world of fragrances: Iso E Super® is the showcase · read 2026-09-30

the family name as the review’s classification spells it

confidence B

Components

Under each component, the evidence for its place in the accord. Teaching parts are a house interpretation for learning: modeled, not measured, not a formula.

Component	Role	Teaching parts	Volatility
Iso E Super documented Iso E Super® (33) | 59056-94-9 | woody, floral, ambergris, violet, old-wood, lemony (500 ng L−1) ISO-2 · Stepanyuk and Kirschning (2019). Synthetic terpenoids in the world of fragrances: Iso E Super® is the showcase · read 2026-09-30 confidence A	heart perfumery convention the trade’s shared vocabulary; no single source the trade’s top / heart / base convention for this material confidence B	55 parts modeled modeled teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making confidence C	not on record why no volatility class on record for iso-e-super
Sandalwood oil perfumery convention the trade’s shared vocabulary; no single source the trade’s convention confidence B	base perfumery convention the trade’s shared vocabulary; no single source the trade’s top / heart / base convention for this material confidence B	25 parts modeled modeled teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making confidence C	not on record why no volatility class on record for sandalwood-oil
Vetiver oil perfumery convention the trade’s shared vocabulary; no single source the trade’s convention confidence B	base perfumery convention the trade’s shared vocabulary; no single source the trade’s top / heart / base convention for this material confidence B	20 parts modeled modeled teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making confidence C	not on record why no volatility class on record for vetiver-oil

Substitutions

• For sandalwood oil: α-Santalol in place of sandalwood oil: with β-santalol, the main contributor to its scent. (α-santalol)
  inferred

  The α- and β-santalols are the most important contributors to sandalwood oil fragrance [3]–[5].

  GC-7 · Diaz-Chavez et al. (2013). Biosynthesis of Sandalwood Oil: Santalum album CYP76F Cytochromes P450 Produce Santalols and Bergamotol · read 2026-09-30

  inferred from the study; one molecule is not the oil

  confidence B

Regulations that apply to a component

• Regulation (EU) 2023/1545 (labelling of fragrance allergens)

Odour descriptors

• woody
• floral
• ambergris
• violet
• lemony
• creamy
• milky
• sweet
• smoky
• rooty

In history

• Iso E Super, 1972
• Ionone and the woody-violet synthetics, 1893

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. GC-7 · Diaz-Chavez ML, Moniodis J, Madilao LL, Jancsik S, Keeling CI, Barbour EL, Ghisalberti EL, Plummer JA, Jones CG, Bohlmann J. Biosynthesis of Sandalwood Oil: Santalum album CYP76F Cytochromes P450 Produce Santalols and Bergamotol. PLoS ONE 2013;8(9):e75053. DOI 10.1371/journal.pone.0075053. PMID 24324844. PMCID PMC3854609. doi.org/10.1371/journal.pone.0075053 · read 2026-09-30 · CC BY 4.0

Our text and structure are CC BY 4.0; quoted source text stays under its owners’ terms.

this record as data: /data/accord/woody-ambery-teaching-accord.json · version 2 · updated 2026-09-30 · confidence B