In short
Apo Patchone is IFF's name for 4-isopropylcyclohexanol, a suede-like leather note with a diffusive floral heart of rose, geranium and lilac.
What Apo Patchone smells like
IFF describes the material as a diffusive floral effect reminiscent of a combination of lilac, rose and geranium. The Good Scents Company, smelling a 10% solution, lists leather, red rose, green, dusty, weedy and metallic. Fraterworks, selling it as Apo Patchone Coeur, describes a smooth, sophisticated suede-like leather fused with a floral heart of rose, geranium and lilac.
- Leading note
- Suede leather
- Clear facets
- Lilac
- Supporting facets
- Rose, geranium
- Faint facets
- Dusty, metallic
- Character
- Soft, diffusive
What makes Apo Patchone distinctive
Leather and flowers in one molecule: a suede note that already carries rose, geranium and lilac.
How Apo Patchone is used
Used for a soft suede note in leather accords and as a floral-leather modifier in rose and lilac compositions.
Typical role: modifier (used in small amounts to change the character of a blend).
How Apo Patchone differs from similar materials
- 4-tert-Butylcyclohexanol
- 4-tert-Butylcyclohexanol, the other cyclohexanol sold under a Patchone name, is dry, woody and camphoraceous; Apo Patchone is a soft suede leather with lilac, rose and geranium.
- Suederal
- Suederal is a drier, more chemical suede base with no flowers; Apo Patchone is suede already carrying rose and lilac.
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.
Formulation considerations
IFF also sells Apo Patchone Coeur under the same CAS number; the sources read do not say how the two grades differ.
Identity and classification
- Type
- Aroma chemical
- Origin
- Occurs in nature
- Odour family
- Leather / Floral
- Note position
- Heart note
- Physical form at room temperature
- Liquid
- Also known as
- 4-Isopropylcyclohexanol, Leather cyclohexanol
- CAS number
- 4621-04-9
- Molecular formula
- C9H18O
- Molecular weight
- 142.24 g/mol
- IUPAC name
- 4-propan-2-ylcyclohexan-1-ol
The CAS number, formula and molecular weight are taken from PubChem compound 20739, whose own record lists this CAS number; checked 25 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 (1,596 reports): H318 causes serious eye damage (97.6% of reports). 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
-
Suederal
Specialty base · Leather — suede, leather, dry
-
Safraleine
Aroma chemical · Spicy / Leather — saffron, leathery, spicy, tobacco
-
Cashmeran
Aroma chemical · Woody / Musky — musky, woody, spicy, velvety
Used in formulas and accords
Used in 5 published formulas
Apo Patchone is an ingredient in 3 perfume formulas and 2 accords in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Apo Patchone
Is Apo Patchone natural or synthetic?
The molecule occurs in nature. Commercial Apo Patchone may be made by synthesis or obtained from natural sources, so check the supplier's specification if the distinction matters to you.
What is the CAS number of Apo Patchone?
4621-04-9. It was checked against PubChem on 25 October 2026.
Which published formulas use Apo Patchone?
Apo Patchone is used in 5 published formulas in the RUŌOD Lab Formula & Accord Library, including Bitter Bridle, Osmanthus Suede and Paper Accord. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 20739, checked 25 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- The Good Scents Company — leather cyclohexanol (Apo Patchone, IFF) — odour database.
- Fraterworks — Apo Patchone Coeur — distributor's description.
- 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.