OTBCHA (Verdox®)
Premium Synthetic Ingredient for Perfumery
OTBCHA, also known commercially as Verdox®, Agrumex HC, or Green Acetate, is a synthetic acetate ester used in perfumery for its fruity, woody, and powdery profile. Characterized by a fresh apple-like aroma with dry violet-ionone and amber-cashmeran facets, it supports both floral and woody compositions with unusual intensity. Despite its strength, it blends smoothly and is frequently used to impart fruity-tea effects, powdered floral textures, or modern woody diffusion across multiple fragrance families.
Premium Synthetic Ingredient for Perfumery
OTBCHA, also known commercially as Verdox®, Agrumex HC, or Green Acetate, is a synthetic acetate ester used in perfumery for its fruity, woody, and powdery profile. Characterized by a fresh apple-like aroma with dry violet-ionone and amber-cashmeran facets, it supports both floral and woody compositions with unusual intensity. Despite its strength, it blends smoothly and is frequently used to impart fruity-tea effects, powdered floral textures, or modern woody diffusion across multiple fragrance families.
Premium Synthetic Ingredient for Perfumery
OTBCHA, also known commercially as Verdox®, Agrumex HC, or Green Acetate, is a synthetic acetate ester used in perfumery for its fruity, woody, and powdery profile. Characterized by a fresh apple-like aroma with dry violet-ionone and amber-cashmeran facets, it supports both floral and woody compositions with unusual intensity. Despite its strength, it blends smoothly and is frequently used to impart fruity-tea effects, powdered floral textures, or modern woody diffusion across multiple fragrance families.
Synthetic Ingredient Overview
🏭 Manufacturer: IFF, Firmenich
🔎 Chemical Name: (2-tert-butylcyclohexyl) acetate
🧪 Synonyms: Verdox®, Green Acetate, Agrumex HC, OTBCHA
🧬 Chemical Formula: C₁₂H₂₂O₂
📂 CAS N°: 88-41-5
⚖️ Molecular Weight: 198.30 g/mol
📝 Odor Type: Fruity
📈 Odor Strength: Medium
👃🏼 Odor Profile: Fresh, fruity (apple-like), woody, violet-like; dry powdery ionone/damascone with cashmeran and ambery nuances
⚗️ Uses: Fruity tea notes, floral-violet enhancement, modern woody support
🧴 Appearance: Colorless to pale yellow liquid
What is OTBCHA (Verdox®)?
OTBCHA is a synthetic aliphatic ester based on a tert-butyl-substituted cyclohexyl ring. Commercially marketed under names such as Verdox® and Agrumex HC, it is used for its high performance in low dosages and excellent compatibility across olfactive categories. Its molecular structure provides an intersection of fruity top notes and woody-powdery mid/base tone effects, making it a multifaceted tool for perfumers seeking volume, transition, or liftin their formulas.
Though often listed as "fruity," its character is not sugary or overtly edible—it is fresh, clean, and structurally complex.
Olfactory Profile & Perfumery Applications
👃🏼 Scent Description:
Fresh apple and green-fruit top
Violet-ionone softness through the mid
Woody-ambery base with soft cashmeran-like nuances
⚗️ Functional Roles:
Enhances floral-tea effects in peony, violet, mimosa
Adds lift and roundness to fruity-floral perfumes
Useful in woody ambers, especially with iso E-type or cashmeran structures
Blends smoothly with musks and soft aldehydes
🧴 Ideal for:
Modern florals and soft orientals
Functional perfumery (shampoos, conditioners, personal care)
Woody-amber bases requiring top-note freshness
Industrial & Technical Uses
OTBCHA is predominantly used in:
Fine fragrance formulation
Cosmetic fragrance bases (lotions, creams, deodorants)
Functional perfumery (e.g., fabric care, room sprays)
Its moderate volatility and diffusion make it valuable in long-wear or slowly-evolving compositions.
It is not suitable for flavor use, and does not participate in chemical synthesis as an intermediate.
Regulatory & Safety Overview
IFRA: Permitted; follow category-based guidance for esters and cyclohexyl compounds
EU Allergens: Not listed among the 26 declarable fragrance allergens
FEMA: Not GRAS; not for flavor use
ECHA (REACH): Registered; not classified as hazardous
Toxicology:
No known dermal sensitization
Low volatility; suitable for leave-on and rinse-off products
Not persistent or bioaccumulative
✅ Considered safe for all fragrance applications under normal usage levels.
Sources
IFF Technical Literature – Verdox® Product Sheet
Firmenich Ingredient Description – Agrumex HC
Fulvio Ciccolo, 2023
ECHA Substance Information (88-41-5)
S. Arctander – Functional Analogues and Powdery Modifiers
