Oud Synth 10760E

Base Ingredient Overview

• 📘 FEMA: Not listed

• 📝 Odor Type: Woody, Balsamic, Animalic

• 📈 Odor Strength: Medium-high (long-lasting)

• 👃🏼 Odor Profile: Smoky, leathery, resinous, dark woods, burnt bark, warm musky undertones

• ⚗️ Uses: Base note, oud substitute, woody/balsamic modifier

• 🧴 Appearance: Amber to dark brown liquid

What is OUD SYNTH 10760E?

OUD SYNTH 10760E is a multi-molecular aromatic base developed to replicate the olfactory structure of natural oud, also known as agarwood. Unlike single-molecule aroma chemicals, this material is a complex blend of synthetic ingredients, formulated to reproduce the highly nuanced, dark, and resinous signature of oud oils extracted from Aquilaria species.

Natural oud oil is produced through microbial-induced resin formation in the heartwood of Aquilaria crassna, Aquilaria malaccensis, and related species. Due to its high cost, ecological sensitivity, and regulatory control under CITES (Convention on International Trade in Endangered Species), synthetic alternatives are increasingly critical in modern perfumery.

Developed within an R&D framework targeting sustainability, batch consistency, and regulatory safety, OUD SYNTH 10760E addresses the three major limitations of natural oud:

• Ecological and legal sourcing constraints of wild-harvested Aquilaria

• Compositional variability of natural distillations (affected by region, species, infection, and method)

• Formulation instability in modern fragrance matrices

This synthetic base is not “proprietary” in the legal sense, but its detailed formula is not publicly disclosed. It is instead listed and marketed as a defined multi-component mixture, with individual constituents evaluated for regulatory safety and GHS classification.

Development and Context

OUD SYNTH 10760E was developed as part of ongoing fragrance innovation aimed at reconstituting rare natural ingredients using synthetic analogs. This material serves as a synthetic reconstruction of natural oud, a resinous substance derived from the heartwood of Aquilaria species. Natural oud oil is one of the most complex and expensive raw materials in perfumery, prized for its deep, smoky, balsamic character. However, its use poses significant challenges related to ecological impact, legal sourcing restrictions, and olfactory variability.

OUD SYNTH 10760E addresses these issues through a multi-component formulation designed to replicate the richness, depth, and mystical olfactory facets of oud in a stable and reproducible form. Its development responds to two major industry priorities: environmental sustainability and olfactory performance reliability. Natural oud is often subject to international trade controls due to the endangered status of Aquilaria crassna and Aquilaria malaccensis, as regulated by CITES (2023). By offering a synthetic oud substitute, OUD SYNTH 10760E contributes to reducing dependence on ecologically sensitive resources while enabling perfumers to work with a consistent, regulation-ready material that preserves the complexity of the original olfactory archetype.

Olfactory Profile & Perfumery Applications

The olfactory character of OUD SYNTH 10760E is designed to evoke the richness and depth of high-quality Indian or Laotian oud oils, both known for their leathery, smoky, and balsamic facets. The base is structured to reflect the three key olfactory domains of traditional oud:

1. Smoky-resinous top – via synthetic guaiacols and phenolic modifiers

2. Leathery-animalic core – built with ketones and musky structures

3. Woody-balsamic drydown – incorporating woody esters, macrocyclic musks, and incense-like nuances

This structure gives the material a complex, diffusive profile with excellent substantivity and olfactory authenticity. The smoky, woody, and leathery attributes are enhanced by trace animalic tenacity, which allows the base to function as a robust signature within a composition or as a supporting element.

Commonly used in:

• Luxury oud fragrances (masculine, unisex, niche)

• Oriental-woody builds, where balsamic and smoky tones are needed

• Modern chypres with incense or leather components

• Middle Eastern-style perfumery, including mukhallats and attar-inspired blends

It pairs exceptionally well with ingredients like rose, saffron, cypriol (nagarmotha), labdanum, patchouli, castoreum-type bases, and smoky resins. The material supports modular oud accord building, where formulators construct layered oud effects using complementary ingredients.

Recommended dosages range from:

• 0.1–0.5%: To add oud nuance or background character

• 1–3%: To form a prominent oud signature within a composition

• Up to 5%: For dominant, central oud accords in extrait-strength formulas

Industrial, Technical & Regulatory Considerations

OUD SYNTH 10760E is designed for maximum formulation versatility and compliance, intended exclusively for perfumery and cosmetic applications. It is stable in alcohol, anhydrous systems, and mild surfactant-based formats, and retains its profile under long-term wear conditions on skin and fabric.

• Solubility: Alcohol-soluble; not water-soluble

• Application formats: Extraits, EDPs, body oils, balms, solid perfumes

• Environmental compatibility: Some components are readily biodegradable

• Safety: SDS classifies the mixture as non-hazardous under GHS for normal cosmetic use

• CITES relevance: Use of this synthetic alternative reduces pressure on endangered Aquilaria species

• Regulatory frameworks: Compliant with IFRA 51 (as a blend); constituents aligned with EU Cosmetic Regulation and REACH where applicable

Not classified under a single CAS number, the base is treated as a defined mixture with regulatory oversight applied at the component level.

Environmental and Ethical Profile

OUD SYNTH 10760E aligns with increasing industry demand for sustainable, animal-free, and traceable alternatives to traditional natural materials. It supports perfumers in:

• Avoiding endangered raw materials (e.g. Aquilaria malaccensis, listed under CITES Appendix II)

• Maintaining cruelty-free claims, avoiding ingredients of animal origin (e.g., civet, castoreum)

• Ensuring batch-to-batch reproducibility, key for industrial-scale fragrance production

• Enabling access to oud-style compositions without ethical or ecological concerns

Its use reflects broader principles in line with Scentspiracy’s reference to the 12 Principles of Green Chemistry and the transition toward “conscious luxury” in fragrance development.

Sources

• CITES Appendices I, II and III (2023)

• IFRA Standards – 51st Amendment (2023)

• Firmenich SDS – Oud Synth PE 184007 D-0 (2022)

• Naef, R. (2021), The Chemistry of Fragrances

• Surburg & Panten (2016), Common Fragrance and Flavor Materials