Description

(+)-Menthone CAS NO 3391-87-5 is a high-purity, naturally derived monoterpene ketone that serves as a key chiral intermediate and flavor/fragrance ingredient. Its distinct, fresh minty-woody odor profile and defined stereochemistry make it a valuable building block for the synthesis of more complex aroma chemicals and active pharmaceutical ingredients. This product is essential for manufacturers in the flavor & fragrance, pharmaceutical, and agrochemical industries seeking consistent quality and reliable supply for their formulations.

Application

• Flavor & Fragrance (F&F) Industry: A primary building block for synthesizing menthol and other minty aroma chemicals. Used as a fragrance component in perfumes, cosmetics, and personal care products for its refreshing, cooling character.
• Pharmaceutical Intermediates: Serves as a chiral synthon in the production of active pharmaceutical ingredients (APIs) and fine chemicals where its specific stereochemistry is critical.
• Agrochemical Synthesis: Utilized as an intermediate in the manufacture of certain pesticides and herbicides, leveraging its terpene backbone.
• Food & Beverage Flavors: Employed as a flavoring agent to impart minty notes in confectionery, oral care products, and beverages, often where natural character is desired.
• Research & Development: Used in organic chemistry research, particularly in studies involving asymmetric synthesis, terpene chemistry, and odorant receptor interactions.
• Industrial & Household Products: Incorporated into air fresheners, detergents, and cleaning products to provide a clean, minty scent.

Basic Information

Product Name	(+)-Menthone
CAS No.	3391-87-5
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	(2S,5R)-2-Isopropyl-5-methylcyclohexanone; d-Menthone; (2S,5R)-p-Menthane-2-one; L-Menthone; (2S-trans)-5-Methyl-2-(1-methylethyl)cyclohexanone; p-Menthane-2-one; (1R,4S)-p-Menthane-2-one
EINECS	222-226-7

Quality Control

Our (+)-Menthone is produced under strict quality management systems. Each batch undergoes rigorous analytical testing including chiral purity analysis (GC/HPLC), identity confirmation (IR, NMR), and impurity profiling to ensure it meets the high standards required for flavor, fragrance, and pharmaceutical applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and is light-sensitive. Keep away from strong oxidizing agents, heat, and ignition sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Chiral Purity (GC)	≥ 99.0% (2S,5R)-isomer
Refractive Index (20°C)	1.448 - 1.452
Specific Gravity (20/20°C)	0.888 - 0.898
Optical Rotation [α]20/D	+24° to +30°
Related Substances (GC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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