Description

2-Chloroethyl Methanesulfonate is a versatile alkylating agent and a key chemical intermediate in organic synthesis. Its primary value lies in its ability to introduce the 2-chloroethyl functional group, making it a critical building block for the development of more complex molecules. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to synthesize active ingredients and fine chemicals. Reliable access to high-purity 2-Chloroethyl Methanesulfonate CAS NO 3570-58-9 is fundamental for process development and scale-up.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring ethylenimine or aziridine moieties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators that incorporate chloroethyl groups.
• Chemical Research & Development: Employed as a versatile alkylating agent in organic chemistry labs for creating novel compounds and studying reaction mechanisms.
• Polymer Modification: Acts as a cross-linking agent or a functional monomer precursor in the production of specialty polymers and resins.
• Bioconjugation Reagent: Utilized in biochemical research for modifying proteins, nucleic acids, or other biomolecules.
• Dye and Pigment Manufacturing: Serves as an intermediate in the synthesis of certain complex colorants.

Basic Information

Product Name	2-Chloroethyl Methanesulfonate
CAS No.	3570-58-9
Molecular Formula	C3H7ClO3S
Molecular Weight	158.60 g/mol
Synonyms	Methanesulfonic Acid 2-Chloroethyl Ester; 2-Chloroethyl Mesylate; NSC 9375; 2-Chloroethyl Methylsulfonate; Chloroethyl Methanesulfonate; β-Chloroethyl Methanesulfonate; Methylsulfonyl Chloroethane
EINECS	222-653-8

Quality Control

Our 2-Chloroethyl Methanesulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by GC/HPLC, identification by FT-IR, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque or amber glass, or stored in dark conditions.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%
Refractive Index	1.460 - 1.470
Density	1.40 - 1.45 g/cm³

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