Description

Butanoic Acid, 3-Oxo-, (1R,2S,5R)-5-Methyl-2-(1-Methylethyl)Cyclohexyl Ester is a high-purity, optically active ester compound valued for its specific stereochemistry and functional groups. This compound is a critical intermediate and building block in advanced organic synthesis, where precise molecular structure is paramount. It is primarily sought by manufacturers in the pharmaceutical, fragrance, and specialty chemical industries for the development of complex target molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs requiring specific stereochemical configurations.
• Fragrance and Flavor Ingredient: Used as a precursor or a component in the creation of complex, high-value aromatic compounds for perfumery and flavor formulations.
• Advanced Organic Synthesis: Serves as a versatile building block in research and development for constructing complex natural products, ligands, and functional materials.
• Agrochemical Synthesis: Employed in the production of specialized agrochemicals where its specific ester and ketone functionalities are utilized.
• Chemical Research: Used as a standard or reagent in academic and industrial laboratories for methodological studies and catalysis research.

Basic Information

Product Name	Butanoic Acid, 3-Oxo-, (1R,2S,5R)-5-Methyl-2-(1-Methylethyl)Cyclohexyl Ester
CAS No.	59557-05-0
Molecular Formula	C14H24O3
Molecular Weight	240.34 g/mol
Synonyms	(-)-Menthyl Acetoacetate; L-Menthyl Acetoacetate; (1R,2S,5R)-(-)-Menthyl Acetoacetate; (1R,2S,5R)-5-Methyl-2-(1-methylethyl)cyclohexyl 3-oxobutanoate; 3-Oxobutanoic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester; Acetoacetic acid (-)-menthyl ester; L-Menthyl 3-oxobutanoate
EINECS	Contact for details

Quality Control

Our production of Butanoic Acid, 3-Oxo-, (1R,2S,5R)-5-Methyl-2-(1-Methylethyl)Cyclohexyl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity analysis, to ensure it meets the exacting standards required for pharmaceutical and high-end synthetic applications. Certificates of Analysis (COA) with detailed specifications for identity, purity, and enantiomeric excess are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat sources and incompatible materials. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% ee
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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