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vetiver oil acetylated

Vetiver oil acetylated is a medium-strength woody fragrance oil with sweet, earthy, and sandalwood notes used primarily in perfumery.

General Material Description

Vetiver oil acetylated is an acetylated essential oil derived from vetiver roots, often sourced from Java or Haiti. As a complex natural mixture chemically modified by acetylation, it retains a medium woody odour characterized by sweet, earthy, root-like, and sandalwood nuances. Synonyms include vetiver acetate, vetiver acetate java, and vetiver oil acetate. This ingredient is widely used in fragrance compositions due to its smooth aroma and persistence. The material is listed under CAS number 68917-34-0, and further chemical data can be found in public databases such as PubChem. The acetylation process helps modify odor profile and reduce allergenic components compared to crude vetiver oil.

Occurrence, Applicability & Potential Uses

Vetiver oil acetylated originates from the roots of Vetiveria zizanoides, a grass indigenous to tropical regions such as India, Haiti, and Java. It is prepared by acetylation of vetiver essential oil to improve its sensory qualities, particularly enhancing woody and earthy notes while providing better skin compatibility. The oil finds primary use as a key fragrance agent in perfumery, contributing to complex accords such as chypre, oriental, woody, and sandalwood types. It complements perfume families associated with aldehydic and herbal nuances and appears in fine fragrance products like those inspired by aromas such as Amour-Amour and Charlie. Use and concentration limits are governed by IFRA (Global) standards, which ensure the material's safe incorporation in consumer products.

Physico-Chemical Properties Summary

Vetiver oil acetylated exhibits a specific gravity ranging from approximately 0.979 to 0.999 at 25°C, reflecting its slightly dense, oily nature. Its refractive index between 1.509 and 1.515 at 20°C indicates the typical optical characteristics of essential oils. The acid value is limited to a maximum of 6 KOH/g, signifying low free acid content, which contributes to product stability. This oil is soluble in ethyl alcohol and slightly soluble in water, impacting formulation choices especially for alcohol-based perfumes. The material demonstrates good stability across various cosmetic matrices, including creams, lotions, shampoos, and soaps, with no significant discoloration observed. These properties are essential for its performance and compatibility in fragrance compositions.

FAQ

What is vetiver oil acetylated and what are its primary characteristics?
Vetiver oil acetylated is a chemically modified essential oil obtained by acetylation of vetiver root oil. It is recognized for its medium woody scent that combines sweet, earthy, root, and sandalwood notes. This modification reduces certain allergens present in crude vetiver oil, making it suitable for use in perfumery. The oil is valued for its long-lasting odor profile, often described as a smooth woody fragrance with a substantivity of about 400 hours at full concentration.
Where is vetiver oil acetylated typically sourced from and how is it used in products?
The original vetiver oil used for acetylation is obtained from Vetiveria zizanoides roots, primarily cultivated in tropical regions like Java, Haiti, and India. After acetylation, the oil serves as an ingredient in fragrance formulations, contributing complex woody and earthy facets to perfumes and personal care products. It is compatible with a variety of cosmetic matrices such as bath foams, creams, shampoos, and soaps. Usage levels are carefully controlled according to regulatory standards to ensure safety and optimal sensory performance.
What regulations and safety measures govern the use of vetiver oil acetylated in fragrances?
Vetiver oil acetylated is regulated under the International Fragrance Association (IFRA) Code of Practice, which sets maximum concentration limits for different product categories to minimize dermal sensitization and systemic toxicity risks. The ingredient must be produced by specified acetylation methods that avoid allergenic contaminants. European hazard classification identifies it as a skin irritant (Xi) with relevant safety precautions such as wearing gloves during handling. Comprehensive safety assessments by organizations like RIFM and RIFM's data inform its restricted use. The oil is not approved for flavor applications and should only be used as a fragrance ingredient within prescribed parameters.

US / EU / FDA / JECFA / FEMA / Scholar / Patents

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Other Information

HMDB (The Human Metabolome Database):Search
Export Tariff Code:2915.39.9050

General Material Information

Preferred name vetiver oil acetylated
Trivial Name Oils, vetiver, acetylated
Short Description vetiver oils acetylated
Formula unspecified
CAS Number 68917-34-0
FDA UNII Search
Synonyms
  • vetiver acetate
  • vetiver acetate java
  • vetiver acetate java MD
  • vetiver oil acetate
  • vetiver oil crude acetylated
  • vetiver oils acetylated
  • vetivert acetate extra (haiti)
  • vetyver acetate base (Synarome)
  • Oils, vetiver, acetylated

PhysChem Properties

Material listed in food chemical codex No
Specific gravity @ 25 °C
Pounds per Gallon 8.146 to 8.313
Refractive Index 1.509 to 1.515 @ 20 °C
Acid Value 6 max KOH/g
Solubility
ethyl alcohol, 9 parts of 80% alcohol Yes
water, 0.5315 mg/L @ 25 °C (est) Yes
Stability
bath foam Unspecified
cream Unspecified
hair spray Unspecified
lipstick Unspecified
non-discoloring in most medi Unspecified
powder Unspecified
shampoo Unspecified
soap Unspecified

Organoleptic Properties

Odor Type: Woody
sweet, woody, rooty, earthy, sandalwood
Odor strength medium
Substantivity 400 hour(s) at 100.00 %
General comment At 100.00 %. sweet woody root earthy sandal

Safety Information

Safety information

European information :
Most important hazard(s):
Xi - Irritant
R 38 - Irritating to skin.
S 37 - Wear suitable gloves.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
IFRA Critical Effect:
Dermal sensitization and systemic toxicity
IFRA fragrance material specification:

Acetylated vetiver oil should only be used as a fragrance ingredient if produced by methods which give products free from allergens. Such acetylated vetiver oils may be prepared by the following acetylation methods using acetic anhydride:

without catalyst, at a temperature not exceeding 120°C.

with ortho phosphoric acid at room temperature.

with sodium acetate in toluene at reflux temperature.

The first two products can be used in their crude form after the usual procedures, but may be further purified. In the last case, distillation is necessary.

This recommendation is based on test results of RIFM with samples prepared according to different acetylation methods (private communication to IFRA).

View the IFRA Standard
View IFRA Standards Library for complete information.
Please review Amendment 49 IFRA documentation for complete information.
IFRA RESTRICTION LIMITS IN THE FINISHED PRODUCT (%):
Category 1: Products applied to the lips
0.05 %
Category 2: Products applied to the axillae
0.05 %
Category 3: Products applied to the face/body using fingertips
0.05 %
Category 4: Products related to fine fragrance
0.90 %
Category 5: Products applied to the face and body using the hands (palms), primarily leave-on
Category 5A: Body lotion products applied to the body using the hands (palms), primarily leave-on
0.10 %
Category 5B: Face moisturizer products applied to the face using the hands (palms), primarily leave-on
0.10 %
Category 5C: Hand cream products applied to the hands using the hands (palms), primarily leave-on
0.10 %
Category 5D: Baby Creams, baby Oils and baby talc
0.033 %
Category 6: Products with oral and lip exposure
0.098 %
Category 7: Products applied to the hair with some hand contact
Category 7A: Rinse-off products applied to the hair with some hand contact
0.10 %
Category 7B: Leave-on products applied to the hair with some hand contact
0.10 %
Category 8: Products with significant anogenital exposure
0.033 %
Category 9: Products with body and hand exposure, primarily rinse off
0.20 %
Category 10: Household care products with mostly hand contact
Category 10A: Household care excluding aerosol products (excluding aerosol/spray products)
0.20 %
Category 10B: Household aerosol/spray products
3.80 %
Category 11: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate
Category 11A: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
0.033 %
Category 11B: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
0.033 %
Category 12: Products not intended for direct skin contact, minimal or insignificant transfer to skin
No Restriction
Notes:
IFRA FLAVOR REQUIREMENTS:

Due to the possible ingestion of small amounts of fragrance ingredients from their use in products in Categories 1 and 6, materials must not only comply with IFRA Standards but must also be recognized as safe as a flavoring ingredient as defined by the IOFI Code of Practice (www.iofi.org). For more details see chapter 1 of the Guidance for the use of IFRA Standards.

Recommendation for vetiver oil acetylated flavor usage levels up to:
not for flavor use.

Safety references

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):68917-34-0
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:2
Chemidplus:0068917340