Dihydro Gamma Ionone

What Dihydro Gamma Ionone smells like

Fraterworks describes dihydro gamma ionone as found naturally in ambergris tincture, to which it contributes a refined tobacco quality; complex, rich and nuanced, less fruity and earthy than dihydro beta ionone and more intense and warm than dihydro alpha ionone, accentuating tea and tobacco qualities with dihydroactinidiolide. The Good Scents Company's own evaluation, at 10% in dipropylene glycol, gives warm, woody, earthy, ambergris, tobacco, amber and violet, and a perfumer on Basenotes describes an elegant ambergris note with wood, smooth tobacco and soft earthy humus.

Leading note

Warm wood

Clear facets

Tobacco

Supporting facets

Tea

Faint facets

Ambery

Character

Refined, warm

• woody
• tobacco
• ambery
• tea
• orris

What makes Dihydro Gamma Ionone distinctive

The warm, tobacco-toned member of the dihydroionones.

How Dihydro Gamma Ionone is used

Used with ionones and orris materials, and to bring out tea and tobacco notes.

Typical role: modifier (used in small amounts to change the character of a blend).

How Dihydro Gamma Ionone differs from similar materials

Azarbre

Azarbre is honey and orris with dried flowers; dihydro gamma ionone is the tobacco-and-ambergris wood.

Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.

Identity and classification

Type

Aroma chemical

Origin

Occurs in nature

Odour family

Woody / Powdery

Note position

Heart to base note

Physical form at room temperature

Liquid

Also known as

Dihydro-gamma-ionone

CAS number

13720-12-2

Molecular formula

C13H22O

Molecular weight

194.31 g/mol

IUPAC name

4-(2,2-dimethyl-6-methylidenecyclohexyl)butan-2-one

The CAS number, formula and molecular weight are taken from PubChem compound 114558, whose own record lists this CAS number; checked 24 October 2026.

Safety and compliance

Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory classify it (90 reports): H317 may cause an allergic skin reaction (100% of reports). A skin sensitiser classification concerns handling the neat material and the dose in a finished product; the IFRA Standards, where they apply, set the limits. Unless it is harmonised, this is the notifiers' own classification, not a binding one.

This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.

Materials it works with

• Dihydro-beta-ionone

  Aroma chemical · Woody / Powdery — woody, orris, ambery, tea

• Dihydroactinidiolide

  Aroma chemical · Musky / Powdery — musky, coumarin

• alpha-Isomethyl Ionone

  Aroma chemical · Powdery / Floral — powdery, violet, orris, woody

Used in formulas and accords

Used in 3 published formulas

Dihydro Gamma Ionone is an ingredient in 2 perfume formulas and 1 accord in the Formula & Accord Library.

Community formulas

• Tobacco Accord

  Community Formula · Accord · listed as “Dihydro Ionone Gamma”

RUŌOD House Originals

Original compositions by RUŌOD House.

• Champaca Tea Room

  RUŌOD House Original

• Cured Leaf

  RUŌOD House Original

Further reading

• Powdery Notes in Perfumery: Iris, Orris and Ionones

  Orris and the ionones at the heart of powdery perfume, the rest of the powdery palette, how to build violet, iris and face-powder accords, and handling.

• Woody Notes in Perfumery: Naturals and Aroma Chemicals

  A map of woody materials — cedarwoods, sandalwood, vetiver, patchouli, smoky woods and woody aroma chemicals — and how to build a woody base.

Questions about Dihydro Gamma Ionone

Sources

• PubChem — compound 114558, checked 24 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• Fraterworks — Dihydro Gamma Ionone — distributor's description.
• PubChem — dihydro-gamma-ionone (CID 114558) — odour database.
• The Good Scents Company — dihydro-gamma-ionone — odour database.
• Basenotes — Dihydro gamma ionone (forum thread) — published perfumery reference.
• Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 26 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.