Benzoin Resinoid (CAS 9000-05-09) — Balsamic Base Note Fragrance Ingredient
Benzoin Resinoid
CAS 9000-05-09
What Is Benzoin Resinoid?
Benzoin resinoid is a warm, vanilla-like aromatic material derived from the bark of Styrax trees. People encounter it in incense, perfumes, and some food flavorings. This resinous material has been prized for centuries for its rich, balsamic qualities that add depth and warmth to fragrances.
Safety Profile
GENERALLY SAFE
What Does Benzoin Resinoid Smell Like?
Benzoin resinoid unfolds with an initial burst of sweet, powdery vanilla with hints of caramelized sugar. As it settles, the heart reveals a complex balsamic character reminiscent of aged leather and dried fruits, with subtle smoky undertones. The dry-down is warm, creamy, and slightly woody, leaving a comforting amber-like trail that persists for hours. Its aroma is like liquid gold – rich, enveloping, and slightly medicinal in the best possible way.
Scent Profile
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used as a balsamic fixative that blends seamlessly with vanilla and iris, creating Shalimar’s legendary oriental warmth.
Provides the resinous depth that defines this spicy oriental, complementing the myrrh and patchouli.
Contributes to the rich amber accord, adding sweetness and longevity to this Middle Eastern-inspired composition.
Enhances the vanilla-tobacco pairing with its balsamic sweetness and resinous texture.
Forms the core of this fragrance, recreating the scent of Armenian paper with its warm, papery-resinous character.
Chemistry, Properties & Perfumer Guide
The Chemistry
Benzoin resinoid is composed primarily of benzoic acid esters (especially coniferyl benzoate) and vanillin derivatives. The resin is obtained through solvent extraction of Styrax benzoin bark exudates. The composition varies depending on the Styrax species (S. tonkinensis vs S. benzoin) and geographical origin. Key aroma compounds include cinnamic acid derivatives and phenylpropanoids that contribute to its characteristic balsamic-sweet profile.
Physical & Chemical Properties
| Appearance | Dark brown viscous liquid |
|---|---|
| Solubility | Soluble in alcohol and fixed oils |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 1-3% | Up to 5% | Used as fixative in oriental compositions |
| Incense | 5-10% | Up to 15% | Provides warm, resinous character |
| Soap/Cosmetics | 0.5-1% | Up to 2% | Adds warmth to amber accords |
Classic Accords
+ Labdanum + Vanilla = Amber Accord
+ Patchouli + Sandalwood = Oriental Base
Tip: Use benzoin resinoid to add warmth and diffusion to vanilla-heavy compositions without making them overly sweet.
Alternatives & Comparisons
More cinnamon-like with similar balsamic properties but stronger odor impact.
Offers comparable resinous qualities but with more floral-cinnamon nuances.
For pure vanilla sweetness without the resinous complexity.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. IFRA, REACH, EU Cosmetics Regulation standards update periodically. Consult current IFRA Standards Library before formulating. Not legal or regulatory advice.
IFRA Status
No IFRA restrictions. Generally recognized as safe for use in fragrances.
EU Allergen Declaration
Contains benzyl benzoate which requires declaration above 0.001% in leave-on products.
RIFM Assessment
RIFM has evaluated benzoin resinoid and found it safe for current use levels in fragrances.
Sustainability
Benzoin is sustainably harvested by making careful incisions in the bark of Styrax trees, allowing resin to exude without harming the tree. The resinoid production through solvent extraction is more efficient than traditional tincturing methods. Synthetic alternatives exist but lack the full complexity of natural benzoin.
Explore Benzoin Resinoid
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Industry & Science Data
References
- Arctander, S. (1960). Perfume and Flavor Materials of Natural Origin.
- Bauer, K. et al. (2001). Common Fragrance and Flavor Materials.
- IFRA Standards Library IFRA
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Mar 2026.
