Description

Cyclopropylmethylmethanesulphonate CAS NO 696-77-5 is a versatile sulfonate ester building block of significant importance in advanced organic synthesis. Its primary value lies in its role as a key alkylating agent and intermediate for introducing the cyclopropylmethyl moiety, a privileged structure in medicinal chemistry. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Critical for the synthesis of active pharmaceutical ingredients (APIs) containing cyclopropylmethyl groups, particularly in antiviral, CNS, and cardiovascular drug candidates.
• Agrochemical Synthesis: Used as a building block in the production of advanced pesticides, herbicides, and fungicides where the cyclopropyl ring enhances biological activity and stability.
• Organic Synthesis Reagent: Serves as a reliable alkylating agent in nucleophilic substitution reactions for laboratory-scale and process chemistry.
• Material Science Research: Employed in the development of novel monomers, polymers, and liquid crystals with tailored properties.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying enzyme mechanisms and biological pathways.

Basic Information

Product Name	Cyclopropylmethylmethanesulphonate
CAS No.	696-77-5
Molecular Formula	C5H10O3S
Molecular Weight	150.20 g/mol
Synonyms	Cyclopropylmethyl methanesulfonate; Methanesulfonic acid cyclopropylmethyl ester; Cyclopropylmethyl mesylate; (Cyclopropylmethyl)methanesulfonate; CPMMS; Cyclopropanemethanesulfonic acid methyl ester; Cyclopropylmethyl methanesulphonate; Cyclopropylmethyl ester of methanesulfonic acid
EINECS	Contact for details

Quality Control

Our Cyclopropylmethylmethanesulphonate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density	~1.20 g/cm³

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