The Compound (CAS No. 329925-33-9) is a synthetic macrocyclic musk material widely used in modern perfumery. The compound belongs to the family of macrocyclic lactones, a class valued for soft, elegant, long-lasting musk characteristics and improved olfactory refinement compared with many older nitro- or polycyclic musks.
Physical and Chemical Properties
| Property | Value / Description |
| Appearance | Colorless liquid |
| Molecular Formula | C₁₅H₂₆O₂ |
| Molecular Weight | 238.37 g/mol |
| Boiling Point | Approximately 310–375 °C (estimated) |
| Flash Point | Approximately 144–157 °C (estimated) |
| LogP | ~4.9 |
| Volatility | Low / base note material |
| Evaporation Rate | Ultra-slow |
The material exhibits high substantivity and low volatility, making it particularly suitable as a long-lasting base-note component in fragrance compositions.
Olfactory Characteristics
Nirvanolide® is characterized by a powerful macrocyclic musk profile with smooth diffusion and excellent persistence. Reported odor descriptors include:
- Musky
- Sweet
- Powdery
- Animalic
- Waxy
- Amber-like
- Woody nuances
- Floral-white musk facets
The compound is recognized for an extremely low odor detection threshold, indicating very high olfactory potency. ScenTree describes it as among the more powerful musk materials used commercially.
Functional Role in Perfumery
- Musk Base Note
The compound is primarily employed as a base-note musk ingredient in fine fragrance and personal care formulations. Its low volatility provides extended scent retention on skin, textiles, and consumer products.
- Fixative Performance
Macrocyclic musks such as Nirvanolide® are valued for their fixative behavior. They help stabilize volatile top and middle notes while extending fragrance longevity.
- Texture Enhancement
Perfumers use this ingredient to impart:
- smoothness,
- softness,
- diffusion,
- sensual warmth,
- and volume to fragrance accords.
It is especially useful in:
- floral fragrances,
- woody-musky accords,
- laundry fragrances,
- fabric care products,
- and premium cosmetic scents.
Industrial Applications
Fine Fragrance Industry
The material is used in:
- perfumes,
- colognes,
- luxury fragrance accords,
- musk bases.
Cosmetics and Personal Care
Applications include:
- skin creams,
- lotions,
- deodorants,
- shampoos,
- conditioners,
- soaps,
- body washes.
Its stability and substantivity make it attractive for rinse-off and leave-on products.
Household and Fabric Care
Because of its persistence on textiles, the ingredient may be incorporated into:
- detergents,
- fabric softeners,
- air fresheners,
- home-care fragrances.
Macrocyclic musks are commonly selected where long-lasting freshness is desired.
Specialty Chemical and Intermediate Use
As a macrocyclic lactone, the compound may also serve as:
- a specialty aroma chemical intermediate,
- a synthetic building block,
- a precursor for related musk and lactone chemistry.
Conclusion
The Compound (CAS No. 329925-33-9) is an important modern macrocyclic musk ingredient used extensively in fine fragrance and personal care applications. The material combines high olfactory potency, excellent stability, and long-lasting musk diffusion with a refined sensory profile suitable for contemporary fragrance design.
Its role as both a musk character material and a fixative makes it valuable in luxury perfumery, cosmetic formulations, and household fragrance systems. Published RIFM safety assessments and industry references further support its established use within the fragrance sector.
Product:329925-33-9,Nirvanolide,Fragrance,Perfume ingredient
