Description

Methanesulfonic Acid,(1R)-1-Methylpropyl Ester is a chiral ester derivative of methanesulfonic acid, serving as a versatile intermediate and reagent in advanced organic synthesis. Its value lies in its role as a chiral building block and potential protecting group, enabling the stereoselective construction of complex molecules. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key chiral synthon in the asymmetric synthesis of active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of chiral pesticides and herbicides.
• Catalyst & Ligand Preparation: Serves as a precursor for specialized catalysts and chiral ligands.
• Organic Synthesis Reagent: Acts as an alkylating agent or protecting group in complex multi-step syntheses.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals and flavors/fragrances.
• Academic & Industrial R&D: Utilized in research laboratories for methodological development and process chemistry.

Basic Information

Product Name	Methanesulfonic Acid,(1R)-1-Methylpropyl Ester
CAS No.	66194-68-1
Molecular Formula	C6H14O3S
Molecular Weight	166.24 g/mol
Synonyms	(R)-sec-Butyl methanesulfonate; (1R)-1-Methylpropyl methanesulfonate; (R)-(-)-sec-Butyl methanesulfonate; (R)-2-Butyl methanesulfonate; (R)-Methanesulfonic acid sec-butyl ester; (R)-sec-Butyl mesylate; (R)-2-Butyl mesylate; (1R)-1-Methylpropyl ester of methanesulfonic acid
EINECS	Contact for details

Quality Control

Our Methanesulfonic Acid,(1R)-1-Methylpropyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting identity, purity, and enantiomeric excess are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability, although the product is stable at controlled room temperature for shorter periods. Keep container tightly sealed when not in use to prevent moisture absorption.

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
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.