Description

Methyl (Chlorosulfonyl)Acetate is a versatile and highly reactive organic sulfonyl chloride derivative, primarily valued as a key synthetic intermediate for introducing the chlorosulfonylacetate functional group. Its reactivity makes it indispensable for constructing complex molecules in advanced chemical synthesis. This compound is particularly sought after by R&D laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of sulfonamide-based drugs, protease inhibitors, and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where the sulfonyl moiety contributes to biological activity.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers with specific functional properties.
• Organic Synthesis Reagent: Employed in various organic transformations, including nucleophilic substitution and condensation reactions, to install functionalized acetate groups.
• Dye & Pigment Manufacturing: Acts as an intermediate in the synthesis of sulfonated dyes and colorants.
• Chemical Research & Development: Essential for exploring new synthetic pathways and developing novel compounds in academic and industrial R&D settings.

Basic Information

Product Name	Methyl (Chlorosulfonyl)Acetate
CAS No.	56146-83-9
Molecular Formula	C3H5ClO4S
Molecular Weight	172.59 g/mol
Synonyms	Acetic acid, 2-(chlorosulfonyl)-, methyl ester; Methyl 2-(chlorosulfonyl)acetate; (Chlorosulfonyl)acetic acid methyl ester; Methyl chlorosulfonylacetate; 2-(Chlorosulfonyl)acetic acid methyl ester; MSCA; Chlorosulfonylacetic acid methyl ester
EINECS	Contact for details

Quality Control

Our Methyl (Chlorosulfonyl)Acetate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure it meets high-purity standards suitable for synthetic applications. Certificates of Analysis (COA) documenting all critical parameters 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, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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