Description

Nootkatone CAS NO 4674-50-4 is a premium sesquiterpenoid ketone renowned for its distinctive and powerful grapefruit aroma. This natural compound is a highly sought-after ingredient for its unique organoleptic properties and growing recognition in advanced applications. It is essential for manufacturers in the flavor & fragrance, personal care, and agrochemical industries seeking to develop sophisticated, natural, and effective products. Its value lies in its ability to impart authentic citrus character and its emerging role as a bioactive agent.

Application

• Flavor & Fragrance Formulations: A key high-impact ingredient for creating authentic grapefruit, citrus, and exotic fruit notes in perfumes, colognes, fine fragrances, and air care products.
• Food & Beverage Flavors: Used as a natural flavoring agent (where compliant) to enhance citrus profiles in beverages, confectionery, and dairy products.
• Personal Care & Cosmetics: Incorporated into soaps, shampoos, lotions, and skincare for its fresh scent and potential skin-feel benefits.
• Biocidal & Repellent Products: An active ingredient in EPA-registered insect repellents and pest control formulations, valued for its natural origin and efficacy against ticks, mosquitoes, and other insects.
• Aromatherapy & Wellness: Used in diffuser blends and therapeutic products for its uplifting and invigorating aromatic qualities.
• Technical & Functional Fluids: Employed as a specialty additive or intermediate in high-value industrial applications requiring specific olfactory markers or bioactive properties.

Basic Information

Product Name	Nootkatone
CAS No.	4674-50-4
Molecular Formula	C15H22O
Molecular Weight	218.33 g/mol
Synonyms	4,4a,5,6,7,8-Hexahydro-6-isopropenyl-4,4a-dimethyl-2(3H)-naphthalenone; (+)-Nootkatone; (4R,4aS,6R)-4,4a-Dimethyl-6-(prop-1-en-2-yl)-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one; Grapefruit Ketone; Nootkaton; NSC 406312; Pamplefleur
EINECS	225-124-8

Quality Control

Our Nootkatone is produced and tested under stringent quality management systems to ensure batch-to-batch consistency and purity. We adhere to relevant industry standards for flavor and fragrance ingredients. Comprehensive testing includes identity confirmation, assay (purity), and specific impurity profiling. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This material is light-sensitive and easily oxidized; prolonged exposure to light, heat, or air should be avoided to maintain stability and shelf life. For long-term storage, consider an inert atmosphere.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Odor	Characteristic grapefruit, citrus
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Specific Rotation [α]20/D	+170° to +185°
Refractive Index n20/D	1.505 - 1.515
Relative Density (20°C)	0.960 - 0.980

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.