Description

(-)-Menthyl Benzoate is a high-purity, optically active ester derived from (-)-menthol and benzoic acid. This compound is valued for its role as a chiral auxiliary, flavor and fragrance ingredient, and versatile intermediate in fine chemical synthesis. It is essential for manufacturers in the pharmaceutical, flavor & fragrance, and specialty chemical industries seeking high-quality, enantiomerically pure building blocks.

Application

• Chiral Auxiliary in Asymmetric Synthesis: Used to induce stereoselectivity in the synthesis of complex pharmaceutical intermediates and active ingredients.
• Flavor and Fragrance Industry: Employed as a synthetic flavoring agent and fragrance component, contributing minty, balsamic notes.
• Pharmaceutical Intermediates: Serves as a key starting material or intermediate in the production of specific active pharmaceutical ingredients (APIs).
• Organic Synthesis Reagent: Acts as a protecting group or a building block in multi-step synthetic routes for fine chemicals.
• Personal Care Products: Used in formulations such as creams, lotions, and oral care products for its functional and aromatic properties.
• Research and Development: A valuable standard and reagent in academic and industrial R&D labs focused on stereochemistry and synthetic methodology.

Basic Information

Product Name	(-)-Menthyl Benzoate
CAS No.	6284-35-1
Molecular Formula	C₁₇H₂₄O₂
Molecular Weight	260.37 g/mol
Synonyms	L-Menthyl benzoate; (-)-Menthyl benzoate; (1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl benzoate; Benzoic acid, menthyl ester, L-; L-Menthol benzoate; Benzoic acid (1R,2S,5R)-2-isopropyl-5-methylcyclohexyl ester; (1R,2S,5R)-Menthyl benzoate
EINECS	228-500-5

Quality Control

Our (-)-Menthyl Benzoate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity (enantiomeric excess), chemical assay, and impurity profiling to ensure it meets the high standards required for pharmaceutical and flavor applications. A Certificate of Analysis (COA) detailing specific results for purity, optical rotation, and identity is 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). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% ee
Specific Optical Rotation [α]²⁰D	-70° to -78° (c=1 in ethanol)
Refractive Index n²⁰D	1.510 - 1.520
Heavy Metals (as Pb)	≤ 10 ppm

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