Vertenex ®
Premium Synthetic Ingredient for Perfumery
Vertenex (CAS 32210-23-4), also known as LORYSIA® (Firmenich) or PTBCHA (para-tert-butylcyclohexyl acetate), is a widely used synthetic molecule known for its clean, woody-floral scent profile. Offering a fresh and powdery iris note with subtle cedarwood, laundry, and herbal-linalyl acetate nuances, Vertenex acts as a versatile blender and modifier across fragrance families. Its ability to bring volume and subtle warmth to compositions—especially in soap, floral, woody, and low-cost applications—has made it a perfumery staple over the past several decades.
Premium Synthetic Ingredient for Perfumery
Vertenex (CAS 32210-23-4), also known as LORYSIA® (Firmenich) or PTBCHA (para-tert-butylcyclohexyl acetate), is a widely used synthetic molecule known for its clean, woody-floral scent profile. Offering a fresh and powdery iris note with subtle cedarwood, laundry, and herbal-linalyl acetate nuances, Vertenex acts as a versatile blender and modifier across fragrance families. Its ability to bring volume and subtle warmth to compositions—especially in soap, floral, woody, and low-cost applications—has made it a perfumery staple over the past several decades.
Premium Synthetic Ingredient for Perfumery
Vertenex (CAS 32210-23-4), also known as LORYSIA® (Firmenich) or PTBCHA (para-tert-butylcyclohexyl acetate), is a widely used synthetic molecule known for its clean, woody-floral scent profile. Offering a fresh and powdery iris note with subtle cedarwood, laundry, and herbal-linalyl acetate nuances, Vertenex acts as a versatile blender and modifier across fragrance families. Its ability to bring volume and subtle warmth to compositions—especially in soap, floral, woody, and low-cost applications—has made it a perfumery staple over the past several decades.
Synthetic Ingredient Overview
🏭 Manufacturer: Firmenich
🔎 Chemical Name: 4-(1,1-Dimethylethyl)cyclohexyl acetate
🧪 Synonyms: PTBCHA, LORYSIA®, Vertenex
🧬 Chemical Formula: C₁₂H₂₂O₂
📂 CAS N°: 32210-23-4
📘 FEMA: Not listed
⚖️ MW: 198.3 g/mol
📝 Odor Type: Woody (classified as ambery by Scentspiracy)
📈 Odor Strength: Medium
👃🏼 Odor Profile: Clean, powdery iris; fresh laundry, woody (cedarwood, Iso E Super-like), with a hint of herbal-linalyl acetate.
👅 Flavor Profile: Not for flavor use
⚗️ Uses: Modifier, blender, and volume enhancer for woody, floral, and functional products
🧴 Appearance: Colorless clear oily liquid
What is Vertenex?
Vertenex is a synthetic acetate ester belonging to the alicyclic fragrance family. Its molecular structure closely relates to other modern perfume materials designed to offer broad olfactory compatibility, stability, and volume. Originally developed for use in soaps and detergents, Vertenex’s stable and economical profile quickly gained favor across perfumery sectors. It is now recognized as one of the most widely adopted materials in industrial and fine fragrance formulations.
Its base structure and odor impact recall the soft ambery-woody elegance of Iso E Super while introducing a slightly fresher, floral-powdery edge reminiscent of ionones or linalyl esters.
Olfactory Profile & Perfumery Applications
Key Characteristics:
Fresh and slightly ambery
Powdery iris and "clean laundry" effect
Woody (soft cedar), subtly fruity-skin tone (not lactonic)
Herbal-ester undertone (like linalyl acetate)
Functional Roles:
Blender/Modifier: Vertenex is commonly used to smooth transitions between top, heart, and base notes.
Volume Enhancer: Ideal in low-cost formulations needing bulk and roundness.
Versatile Note Extender: Works in floral, woody, fougère, pine, and citrus blends.
Iris Effect Replicator: Offers a soft, powdery effect without the volatility of natural iris materials.
Common pairings:
Ionones and Methyl Ionone: Enhances powdery floral body
Cedarwood derivatives and Iso E Super: Amplifies clean woodiness
Linalyl acetate and herbals: Brings freshness to aromatic fougères
Coumarins and Tonka: Provides a cushioned, sweetened drydown
Usage is typical from 0.1% to 5% depending on application, especially in soap bases, detergents, and affordable EDTs.
Industrial and Technical Uses
Vertenex is used extensively in:
Bar soaps and body washes
Powder detergents and fabric softeners
Deodorants and functional sprays
Entry-level or mass-market EDTs and colognes
Its high alcohol, paraffin, and aqueous solubility, plus resistance to discoloration or degradation, makes it ideal for cost-efficient, stable formulation.
It is often the "invisible backbone" of many low-cost compositions that need volume, longevity, and a clean finishing note.
Regulatory & Safety Overview
IFRA 51st Amendment: No restriction listed
EU 26 Allergens: Not declarable
FEMA GRAS: Not listed for food use
ECHA Classification: Not classified as hazardous
Photostability: High
Stability: Excellent in alkaline and surfactant-rich formulations
✅ Safe and stable for use in soaps, home care, and skin-safe concentrations under standard perfumery guidelines.
Conclusion
Vertenex (PTBCHA, LORYSIA®) is a cornerstone of modern functional perfumery. Its clean, powdery floral-woody character combined with exceptional formulation stability and low cost has made it indispensable for perfumers working across soaps, florals, fougères, and commercial fragrance bases. Whether reinforcing the soft woodiness of Iso E Super or enhancing the iris-floral body of violet bases, Vertenex remains a proven material in high-volume and low-budget scent design.
Sources
PubChem Compound CID 36081 – 4-Tert-Butylcyclohexyl Acetate
Firmenich Technical Sheets
S. Arctander – Perfume and Flavor Chemicals
Scentspiracy Archive & In-House Formulary Notes (Fulvio Ciccolo)
