Description

Isomenthone CAS NO 491-07-6 is a high-purity, naturally derived ketone and a key isomer of menthone, prized for its characteristic minty, cooling aroma profile. This compound is essential for formulators seeking to create authentic, fresh, and natural olfactory experiences in a wide range of consumer products. It serves as a critical intermediate and fragrance ingredient for manufacturers in the flavor and fragrance, cosmetics, and pharmaceutical industries, where consistent quality and reliable supply are paramount.

Application

• Fragrance & Flavor Industry: A primary building block for synthesizing menthol and other minty aroma chemicals; used as a fragrance component in perfumes, colognes, and air fresheners for its fresh, herbaceous notes.
• Cosmetics & Personal Care: Incorporated into formulations for soaps, shampoos, lotions, and oral care products (toothpaste, mouthwash) to impart a clean, cooling sensation and pleasant scent.
• Aromatherapy & Essential Oils: Used as a component in therapeutic blends and natural oil mixtures for its potential calming and refreshing properties.
• Pharmaceutical Intermediates: Serves as a chiral starting material or intermediate in the synthesis of more complex active pharmaceutical ingredients (APIs) and cooling agents.
• Industrial Applications: Functions as a solvent or processing aid in specialty chemical synthesis and as a flavoring agent in technical products where a minty note is desired.

Basic Information

Product Name	Isomenthone
CAS No.	491-07-6
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanone; (1R)-trans-2-Isopropyl-5-methylcyclohexanone; L-Isomenthone; (-)-Isomenthone; (1R,4R)-p-Menth-8-en-3-one; p-Menth-8-en-3-one; Cyclohexanone, 5-methyl-2-(1-methylethyl)-, (1R,2S,5R)-; FEMA 3460
EINECS	207-736-0

Quality Control

Our Isomenthone is produced and tested under a strict quality management system. Each batch undergoes comprehensive analysis using advanced techniques like GC and HPLC to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available upon request to meet the stringent requirements of our global B2B partners in regulated industries.

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 and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Optical Rotation	-15° to -25°
Refractive Index (20°C)	1.450 - 1.455
Specific Gravity (20/20°C)	0.900 - 0.910
Related Substances (GC)	Menthone: ≤ 1.0% Other single 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.