Description

(S)-Methanesulfonic Acid 1,5-Dimethylhex-4-Enyl Ester is a high-purity chiral intermediate of significant importance in advanced organic synthesis. Its defined stereochemistry and reactive ester functionality make it a valuable building block for creating complex, optically active molecules. This compound is primarily needed by research and development laboratories and production facilities in the pharmaceutical and fine chemical industries for the synthesis of active pharmaceutical ingredients (APIs) and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and production of novel Active Pharmaceutical Ingredients (APIs), particularly for candidates targeting central nervous system (CNS) disorders and other therapeutic areas.
• Asymmetric Synthesis: Utilized as a building block in stereoselective reactions, including cross-couplings and nucleophilic substitutions, to introduce the (S)-configured alkyl chain.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, such as chiral ligands, catalysts, and advanced materials requiring specific spatial orientation.
• Process Chemistry Development: Employed in route scouting and optimization for scalable synthesis of complex organic molecules in both academic and industrial settings.
• Agrochemical Research: Investigated as an intermediate for developing new chiral pesticides and herbicides with potentially improved efficacy and environmental profiles.

Basic Information

Product Name	(S)-Methanesulfonic Acid 1,5-Dimethylhex-4-Enyl Ester
CAS No.	1620401-61-7
Molecular Formula	C10H20O3S
Molecular Weight	220.33 g/mol
Synonyms	(S)-1,5-Dimethylhex-4-enyl methanesulfonate; (S)-MsO-1,5-Dimethylhex-4-ene; (S)-Methanesulfonic acid 1,5-dimethyl-4-hexenyl ester; (4S)-1,5-Dimethyl-4-hexen-1-yl methanesulfonate; (S)-1,5-Dimethyl-4-hexenyl mesylate; (S)-Mesylate of 1,5-dimethylhex-4-en-1-ol; (S)-DMDH Mesylate
EINECS	Contact for details

Quality Control

Our (S)-Methanesulfonic Acid 1,5-Dimethylhex-4-Enyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral HPLC for enantiomeric excess (ee) verification, to ensure it meets the high-purity standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, chiral purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong bases and incompatible materials such as oxidizing agents. For long-term storage, consider holding under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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