Description

(-)-Nootkatone,5,6-Dimethyl-8-Isopropenylbicyclo[4.4.0]Dec-1-En-3-One is a premium sesquiterpenoid ketone prized for its potent and distinctive grapefruit-like aroma. This compound matters as a high-value natural flavor and fragrance ingredient, offering a clean, citrusy character that is highly sought after in premium formulations. It is needed by manufacturers in the flavor & fragrance, food & beverage, and personal care industries seeking to create sophisticated, natural-tasting citrus profiles.

Application

• Flavor & Fragrance Formulation: A key component in creating authentic grapefruit, citrus, and exotic fruit flavor blends for beverages, confectionery, and savory foods.
• Perfumery & Fine Fragrances: Used as a top or middle note to impart fresh, sparkling, and natural citrus accords in perfumes, colognes, and personal care products.
• Functional Food & Nutraceuticals: Incorporated into supplements and functional beverages for its potential bioactive properties and as a natural flavoring agent.
• Aromatherapy & Home Care: Serves as a natural aromatic ingredient in diffuser oils, candles, and eco-friendly cleaning products for a refreshing scent.
• Cosmetics & Toiletries: Adds a fresh, invigorating scent to soaps, shampoos, lotions, and other personal care items marketed with natural ingredients.
• Tobacco Flavoring: Employed to enhance and modify the flavor profile of tobacco products.
• Research & Development: Used as a reference standard or starting material in organic synthesis and pharmacological studies.

Basic Information

Product Name	(-)-Nootkatone,5,6-Dimethyl-8-Isopropenylbicyclo[4.4.0]Dec-1-En-3-One
CAS No.	38427-78-0
Molecular Formula	C15H22O
Molecular Weight	218.33 g/mol
Synonyms	(-)-Nootkatone; (4R,4aS,6R)-4,4a-Dimethyl-6-(prop-1-en-2-yl)-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one; (4R,4aS,6R)-4,4a-Dimethyl-6-(prop-1-en-2-yl)-1,2,3,4,4a,5,6,7-octahydronaphthalen-2-one; Nootkatone; 5,6-Dimethyl-8-isopropenylbicyclo[4.4.0]dec-1-en-3-one; Grapefruit Ketone; (+)-Valencene Metabolite
EINECS	253-964-5

Quality Control

Our (-)-Nootkatone is produced and tested under strict quality management systems. We offer grades suitable for flavor, fragrance, and research applications, with purity levels tailored to your requirements. Certificates of Analysis (COA) detailing identity, purity, and specific impurity profiles are provided with every shipment to ensure full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at controlled room temperature (15-25°C). Due to its highly volatile nature, ensure containers are sealed immediately after use to prevent loss and maintain product integrity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Odor	Characteristic grapefruit, citrus
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0% (Typical 97-99%)
Optical Rotation [α]20/D	-170° to -190° (c=1 in ethanol)
Refractive Index n20/D	1.505 - 1.515
Specific Gravity (20/20°C)	0.960 - 0.980

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