Herbavert
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Herbavert (CAS 67583-77-1) is a synthetic ether compound developed by Kao Chemicals, presented publicly at the World Perfumery Congress (WPC) 2018. It has a high-impact fresh character with evolving facets that transition from sparkling green and camphoraceous top notes to fruity-apple and soft floral tones in drydown.
With a molecular structure classified as a substituted cyclohexyl ether, it offers high diffusion, short persistence, and versatile functionality in herbal, fruity, and fougère-type compositions.
Premium Synthetic Ingredient for Perfumery
Herbavert (CAS 67583-77-1) is a synthetic ether compound developed by Kao Chemicals, presented publicly at the World Perfumery Congress (WPC) 2018. It has a high-impact fresh character with evolving facets that transition from sparkling green and camphoraceous top notes to fruity-apple and soft floral tones in drydown.
With a molecular structure classified as a substituted cyclohexyl ether, it offers high diffusion, short persistence, and versatile functionality in herbal, fruity, and fougère-type compositions.
Premium Synthetic Ingredient for Perfumery
Herbavert (CAS 67583-77-1) is a synthetic ether compound developed by Kao Chemicals, presented publicly at the World Perfumery Congress (WPC) 2018. It has a high-impact fresh character with evolving facets that transition from sparkling green and camphoraceous top notes to fruity-apple and soft floral tones in drydown.
With a molecular structure classified as a substituted cyclohexyl ether, it offers high diffusion, short persistence, and versatile functionality in herbal, fruity, and fougère-type compositions.
Synthetic Ingredient Overview
🏭 Manufacturer: Kao Chemicals
🔎 Chemical Name: 3,3,5-Trimethylcyclohexyl ethyl ether
🧪 Synonyms: Herbavert, 3-Ethoxy-1,1,5-trimethylcyclohexane
🧬 Chemical Formula: C₁₁H₂₂O
📂 CAS N°: 67583-77-1
📘 FEMA: Not listed
⚖️ MW: 170.29 g/mol
📝 Odor Type: Fresh, Green
📈 Odor Strength: High top-note impact; medium tenacity (~90 minutes)
👃🏼 Odor Profile: Sparkling fresh, rubbery, mentholic, herbal-green, fruity apple-floral in drydown
⚗️ Uses: Herbal note booster, floral-fruity top enhancer, fougère modifier
🧴 Appearance: Clear, colorless liquid
What is Herbavert?
Herbavert is a novel synthetic fragrance material engineered by Kao Specialties, first introduced during WPC 2018. It does not occur in nature and serves as a high-impact ingredient for modern perfumery concepts requiring short-lived but intensely fresh top effects. Chemically, it is an etherified cyclohexane derivative, offering excellent volatility, diffusivity, and compatibility with fruity-green structures.
Its structural similarity to substituted menthol-like compounds accounts for its mild cooling perception, though without harshness or aggressiveness. Herbavert’s transition from rubbery-green top notes to sweet apple-floral nuances makes it valuable in complex multi-phase top-to-mid transitions.
Perceptual Evolution & Pairing Ratios
The evolution of Herbavert is dynamic and layered. Initially, it presents a diffusive, fresh, rubbery-camphoraceous brightness, comparable to cineole or menthol but smoother. Within 8–10 minutes, the freshness recedes, revealing a herbal-green profile. After 20 minutes, the dominant accord is sweet and fruity, reminiscent of apple blossom or Verdox.
Suggested synergies include:
Green/Fresh Modifiers:
Liffarome + Herbavert (1:1): Sparkling vegetable tone
Rose Oxide + Herbavert (1:1): Fresh rosebud nuance
Fougère and Aromatic Systems:
Iso Bornyl Acetate + Herbavert (4:1): Bright, soft floral
Menthol + Herbavert (9:1): Balanced fresh-sweet contrast
Terpinyl Acetate + Herbavert (19:1): Sweet-aromatic opening
Tetrahydrogeraniol + Herbavert (9:1): Fresh floral uplift
Terpineol + Herbavert (19:1): Sweet lime-like impression
Fruity Accords:
Verdox + Herbavert (4:1): Juicy apple-peel effect
This makes Herbavert a structure-supporting material for compositions needing freshness modulation and volatile brightness with floral or fruity anchoring.
Stability in Formulations
Herbavert shows excellent chemical stability across a broad spectrum of product environments, making it ideal for detergent and personal care applications:
Excellent stability:
Heavy-duty detergents (perborate-based)
Light-duty powders (peroxide)
Abrasive and multi-purpose cleaners
Automatic dishwashing systems
Good stability:
Chlorinated dish liquids
Fabric softeners
Alkaline cleaners (e.g., grill cleaners at pH ~13)
Data Pending:
Shampoo (pH ~6)
Soap bars (pH ~9)
It is not recommended in highly acidic systems, where degradation or performance loss may occur. Its short persistence (~90 min) and green-fruity evolution make it ideal for products that benefit from fast-impact top-note delivery and dynamic transition.
Regulatory & Safety Overview
IFRA Classification: No restrictions under standard use
FEMA: Not registered for flavor use
ECHA Status: Not classified as hazardous under REACH
Toxicology Notes: No data indicating sensitization; routine lab safety and ventilation protocols recommended
Storage: Stable under standard warehouse conditions; avoid prolonged exposure to strong acids
Additional Information
Herbavert’s olfactory design supports trends in:
Functional perfumery (fabric and air care)
Fragrance layering with fruity-green and floral components
Short-cycle freshness with extended olfactory interest
Though it has no cooling function, its menthol-like freshness perception offers a subtle tactile dimension that enhances mint, lavender, muguet, and apple-floral systems.
Sources
User-provided WPC 2018 notes (Nice, France)
Pelegri Granel (Kao Chemicals)
PubChem CID 106714
Kao Chemical Global Technical Literature
Scentspiracy Archive and Structured Smelling Sessions
