Timberol

What is Timberol?

Timberol, originally produced by Dragoco (now Symrise) is the HC (high-cis or Cis-rich) racemic Mixture of  1-(2,2,6-Trimethylcyclohexyl)hexan-3-ol and is commercially used as a fragrance raw material for woody ambery fragrance compounds.

The Racemic HT mixture (High-trans or Trans-rich) is called Norlimbanol and is produced by Firmenich (patented in early 2000).

Speaking of the differences in odor of these two geometrical isomers, the trans-isomer (Norlimbanol) is known to be stronger and contributes more of an amber-like odour than the cis-form (Timberol).

Timberol, originally developed by Dragoco (now Symrise), is a synthetic fragrance ingredient with a dry, amber-woody profile. Its chemical structure is a high-cis (HC) racemic mixture of 1-(2,2,6-Trimethylcyclohexyl)hexan-3-ol. Known for its sharp, dry quality and high odor strength, Timberol is widely used in perfumery, personal care products, and functional fragrances.

Chemical and Olfactory Characteristics

1. High-Cis vs. High-Trans Isomers

Timberol represents the high-cis (HC) mixture, while its high-trans (HT) counterpart, Norlimbanol, is produced by Firmenich. These two isomers differ significantly in their olfactory profiles:

• Timberol (High-Cis): Exhibits a drier, woody-ambery aroma with a sharp, cedarwood-like quality.

• Norlimbanol (High-Trans): Offers a stronger amber-like scent, making it ideal for compositions requiring a richer, warmer character.

2. Odor Profile

Timberol is valued for its:

• Woody-Ambery Notes: A dry and substantive base that enhances other woody or amber ingredients.

• Sharp Cedarwood Accents: Adds clarity and structure to fragrance compositions.

• High Odor Strength: Allows it to serve as a prominent or supporting note in formulations.

Applications in Perfumery and Beyond

1. Fine Fragrances

Timberol is a cornerstone ingredient in woody and ambery perfumes, particularly in:

• Masculine Woody Scents: Adds depth and sharpness.

• Oriental Bases: Enhances warmth and structure.

• Modern Ambers: Balances richness with a dry, crisp edge.

2. Functional Fragrances

Due to its high substantivity, Timberol is extensively used in personal care products like:

• Shampoos and Conditioners: Provides long-lasting woody freshness.

• Body Lotions: Adds a premium woody character to skincare formulations.

Comparing Timberol and Norlimbanol

FeatureTimberol (High-Cis)Norlimbanol (High-Trans)Odor StrengthHighVery HighAromaDry, woody-ambery, sharp cedarwoodRicher, warmer amber-like characterApplicationsWoody perfumes, functional fragrancesAmber bases, oriental compositionsProducerSymriseFirmenich

Conclusion

Timberol’s sharp, woody-ambery profile and versatility make it an essential synthetic ingredient in perfumery and personal care formulations. Its ability to enhance both fine and functional fragrances underscores its significance in modern fragrance creation. While Norlimbanol offers a stronger amber-like quality, Timberol stands out for its dry, crisp, and substantive aroma.

Sources and informations

• Fulvio Ciccolo, Scentspiracy 2022

• Symrise

• Current Topics in Flavours and Fragrances: Towards a New Millennium of Discovery