Beta Gurjunene (Natural)

β-Gurjunene is a naturally occurring sesquiterpene found in various essential oils and resin-rich botanical materials. It has a characteristic woody-resinous aroma that adds depth and warmth to perfume compositions, especially in woody, amber and balsamic accords.
CAS number: 73464-47-8
Scent profile: warm woody, resinous, balsamic, soft earthy, natural wood depth
Origin: Component of Acorus calamus and Pinus peuce, among others
Fragrance Group: Woody – resinous, warm, balsamic (base note)
Use: wood enhancer, resin deepener, amber base, natural rounding, light fixation
Role: wood enhancer, resin deepener, amber base, natural rounding, light fixation
IFRA : no restrictions

SKU: ACBGUR Categories: , , Tags: ,

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β-Gurjunene is a sesquiterpene that occurs naturally in resinous and woody botanical materials (such as Acorus calamus and Pinus species).

It typically contributes to:

  • depth
  • heat
  • wood structure
  • resinous nuances

Thus, it functions as a base note in perfume compositions.

 

β-Gurjunene has a warm, woody, resinous character reminiscent of:

  • dried wood
  • soft pine resin
  • warm, balsamic undertones
  • a subtle earthy depth

It is not a dominant fragrance ingredient by itself, but a textural and nuance giver that makes a composition feel fuller, warmer and more natural.

 

Top

  • Virtually no top note impact
  • Very slight terpene freshness on first opening, but subtle

Heart

  • Warm woody
  • Slightly balsamic
  • Soft pine resin associations
  • A natural, “dry” wood tone with no smoke or burning

Basic

  • Earthy-warm
  • Subtle amber
  • Fixing, gives body to other wood and resin materials
  • Enhances the depth of sesquiterpene-rich oils (patchouli, vetiver, guaiac)

 

Character traits

  • Soft but persistent: not loud, but long-lasting presence
  • Round and warm: no sharp edges
  • Naturally woody: ideal for those who want to round out synthetic “clean woods”
  • Compatible with resins: benzoin, labdanum, elemi, copaiba

 

Use in perfumery

1. As a wood enhancer

β-Gurjunene is often used to:

  • make sandalwood notes fuller
  • make cedar smell less dry and more “alive”
  • give patchouli a warmer, balsamic undertone

It acts as a natural wood-booster.

2. In resin and balsamic accords.

Perfect in combinations with:

  • labdanum
  • benzoin
  • elemi
  • copaiba
  • peru balm

It gives these chords depth, warmth and a natural wood texture.

3. In amber and oriental compositions.

It reinforces:

  • amber heat
  • balsamic roundness
  • the “core” of an oriental chord

It is not a sweet amber, but a dry, warm amber base.

4. In natural or nature-based perfumes

Because it is a natural sesquiterpene, it is used to:

  • soften synthetic wood notes
  • make a perfume smell more “organic”
  • create a natural signature without using harsh resins

5. As a fixative

While not a heavy fixative like patchouli or vetiver, it contributes to:

  • durability of wood and resin nuts
  • completion of the basics
  • stability of terpene-rich oils

6. In male and unisex compositions

Its warm, dry wood character makes it ideal for:

  • fougères
  • wood perfumes
  • amberwood scents
  • unisex natural fragrances

 

Combinations that work particularly well

  • Patchouli + β-Gurjunene → warm, woody, deeper
  • Cedarwood + β-Gurjunene → less dry, more rounded
  • Sandalwood + β-Gurjunene → creamier, fuller
  • Labdanum + β-Gurjunene → ambery, warm, balsamic
  • Guaiac + β-Gurjunene → smoky-warm without sharpness

Complementary fragrances (work particularly well together)

  • Sandalwood (EO or molecules) – creamy rounding
  • Guaiacwood – soft smoke and balsamic heat
  • Copaiba Balsam – natural wood heat
  • Amyris – soft, sweet-woody body
  • Ambrettolide – warm, musky rounding
  • Iso E Super – transparent wood elevator
  • Cashmeran – warm, musky-woody diffusion

 

Similar to β-Gurjunene

  • Cedrol – soft, creamy wood
  • Guaiol – warm, balsamic wood
  • Bisabolene (α/β) – mildly woody, warm, soft
  • Santalol (sandalwood molecules) – creamy, warm, woody
  • Elemicin – balsamic, warm, slightly spicy
  • Copaene – soft wood heat, subtle
  • Bulnesol – warm, balsamic, woody

Briefly:

β-Gurjunene → similar to soft balsamic wood substances; complementary to sandalwood, guaiac, cashmeran.

🔍 Agreements

  • Both are natural sesquiterpenes with a woody-resinous character
  • Both are used in base notes of perfumes
  • No IFRA restrictions or EU restrictions
  • Both enhance warmth, depth and fixation in compositions

🧪 Differences

  • α-Gurjunene is more powerful and complex, with a pronounced earthy tone
  • β-Gurjunene is subtler and softer, more balsamic and resinous
  • α-Gurjunene is more often used as a character carrier, β-Gurjunene as a rounding wood enhancer
  • α-Gurjunene fits well in oriental and chypre fragrances, β-Gurjunene in natural wood and amber compositions

Comparison: α-Gurjunene vs β-Gurjunene

Characteristic α-Gurjunene β-Gurjunene
CAS number 489-40-7 73464-47-8
Molecular formula C15H24 C15H24
Structure type Sesquiterpene, cyclopropa[e]azulene Sesquiterpene, carbotricyclic
Origin Gurjun resin, Copaifera species Acorus calamus, Pinus peuce
Fragrance profile Woody, earthy, resinous, powerful and complex Woody, warm, balsamic, soft and resinous
Fragrance strength Medium to powerful Subtle to medium
Use in perfumery Oriental, chypre, amber, balsamic, wood Wood enhancer, fixative, amber base, natural rounding
Role in composition Character giver, dominant base note Texture giver, nuance enhancer, soft fixation
IFRA status No restrictions No restrictions
EU status Not prohibited or restricted Not prohibited or restricted
  • α-Gurjunene: for those seeking a powerful, pronounced wood base
  • β-Gurjunene: for those who want a subtle, warm rounding without dominance

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