clove leaf resinoid

Clove leaf resinoid, identified chemically as Syzygium aromaticum leaf resinoid, is a natural aromatic extract obtained from the leaves of the clove tree. It appears as a viscous, dark brown to black resinous substance carrying a characteristic spicy scent reminiscent of clove spice. This material is also known under various synonyms, including Caryophyllus aromaticus leaf resinoid and Eugenia caryophyllata leaf resinoid, highlighting its botanical origin. It is classified chemically within essential oils and related natural extracts, with a detailed profile available on PubChem. Clove leaf resinoid is typically sourced by solvent extraction of clove leaves, providing a concentrated aromatic ingredient distinct from the steam-distilled clove oils derived from buds or stems.

Clove leaf resinoid occurs naturally in the leaves of the clove tree, Syzygium aromaticum, which is indigenous to tropical regions such as Indonesia. Its extraction focuses on the aromatic compounds that define the clove leaf's characteristic spicy and warm fragrance. This resinoid finds primary application as a fragrance agent in perfumery and flavor industries, especially for imparting a spicy note identified under the IFRA (Global) standards. Due to its intense aroma, it serves in limited concentrations within fragrance formulations to evoke warmth and spice. The product's use for flavor purposes is restricted, as specified under relevant fragrance safety evaluations. Regulatory frameworks including IFRA's Code of Practice guide its safe usage levels, ensuring compliance with international standards.

Physicochemical properties of clove leaf resinoid influence its application and handling. The resinoid exhibits solubility in alcohol solvents, facilitating its incorporation into alcohol-based perfume compositions. Estimated water solubility at 25°C is moderate, reported around 754 mg/L, indicating limited aqueous dispersibility and necessitating appropriate formulation strategies. The resinous nature renders it non-volatile compared to essential oils obtained by distillation, which affects its evaporation profile in end-use products. These properties dictate formulation parameters such as solvent choice and concentration to achieve desired fragrance release and product stability.

Wikipedia:

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Safety information

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
Recommendation for clove leaf resinoid flavor usage levels up to:
	not for flavor use.

Safety references

EPI System: View

EPA GENetic TOXicology:Search

EPA Substance Registry Services (TSCA):8000-34-8

EPA ACToR:Toxicology Data

EPA Substance Registry Services (SRS):Registry

National Institute of Allergy and Infectious Diseases:Data

syzygium aromaticum l. leaf resinoid

Chemidplus:008000348