Description

Methyl 4-Chloro-4-Oxobutanoate is a versatile and reactive organic ester, serving as a key building block in advanced chemical synthesis. Its bifunctional nature, featuring both an acid chloride and an ester group, makes it an invaluable intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds containing succinate or butyrate moieties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, where it acts as a reactive linker.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers, coatings, and resins with tailored properties.
• Organic Synthesis Reagent: Employed in peptide coupling reactions, acylation processes, and as a starting material for heterocyclic compounds.
• Fine Chemical Production: Integral to the manufacture of dyes, flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	Methyl 4-Chloro-4-Oxobutanoate
CAS No.	1490-25-1
Molecular Formula	C5H7ClO3
Molecular Weight	150.56 g/mol
Synonyms	Methyl 4-Chlorobutyryloxyformate; Methyl 4-Chlorobutyrate-4-carboxylate; Methyl 4-Chloro-4-oxobutanoate; 4-Chloro-4-oxobutanoic acid methyl ester; Methyl 4-Chlorosuccinate; Methyl chlorosuccinate; Succinic acid monomethyl ester chloride; Monomethyl succinyl chloride
EINECS	216-062-4

Quality Control

Our Methyl 4-Chloro-4-Oxobutanoate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its reactivity as a strong acid/organic solvent derivative, keep away from heat, open flames, and incompatible materials such as bases, amines, and oxidizing agents. Use appropriate corrosion-resistant storage equipment.

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 Impurities	≤ 1.0% (Total)

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