Description

Chloromethyl 4-Chlorobutanoate is a specialized bifunctional ester compound, serving as a versatile chemical intermediate in advanced organic synthesis. Its molecular structure, featuring both a chloromethyl and a chlorobutanoate group, makes it a valuable building block for constructing more complex molecules. This product is essential for research and development chemists and process engineers in the pharmaceutical and agrochemical industries, where it is used to introduce functionalized alkyl chains or as a precursor for heterocyclic compounds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a chlorinated butanoate side chain.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its reactive chloromethyl group facilitates further derivatization.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the preparation of specialty polymers with specific functional properties.
• Organic Synthesis Reagent: Employed in laboratory-scale and pilot-scale reactions for alkylation, esterification, and the construction of complex organic frameworks.
• Liquid Crystal & Material Science: Potential intermediate in the synthesis of advanced materials, including liquid crystal compounds and organic electronic materials.

Basic Information

Product Name	Chloromethyl 4-Chlorobutanoate
CAS No.	80418-49-1
Molecular Formula	C5H8Cl2O2
Molecular Weight	171.02 g/mol
Synonyms	4-Chlorobutanoic Acid Chloromethyl Ester; Chloromethyl 4-Chlorobutyrate; 4-Chlorobutyryl Chloromethyl Ester; Butanoic Acid, 4-Chloro-, Chloromethyl Ester; (4-Chlorobutoxy)carbonyl Chloride (incorrect but common misnomer); CM-CB Ester; 80418-49-1
EINECS	Contact for details

Quality Control

Our Chloromethyl 4-Chlorobutanoate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as identity, assay, and impurity profile. We are committed to meeting the stringent requirements of our global B2B partners in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to minimize exposure to moisture and prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 2.0%

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