Description

Butanoic Acid, 3-Chloro-2-Oxo-, Methyl Ester is a specialized organic ester building block characterized by its reactive chloro and keto functional groups. This compound matters as a versatile synthon for the synthesis of complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and advanced agrochemicals. It is needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and fine chemical industries seeking to introduce specific molecular motifs efficiently.

Application

• Pharmaceutical Intermediates: A key building block in the synthesis of novel drug candidates, particularly those requiring halogenated keto-ester backbones.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other specialty organic compounds.
• Organic Synthesis Research: Employed in academic and industrial labs for developing new synthetic methodologies, such as cyclization and condensation reactions.
• Polymer Modifiers: Can be used to introduce functional groups into polymer chains to alter material properties.

Basic Information

Product Name	Butanoic Acid, 3-Chloro-2-Oxo-, Methyl Ester
CAS No.	267883-53-4
Molecular Formula	C5H7ClO3
Molecular Weight	150.56 g/mol
Synonyms	Methyl 3-chloro-2-oxobutanoate; Methyl 3-chloroacetoacetate; 3-Chloro-2-oxobutanoic acid methyl ester; 3-Chloroacetoacetic acid methyl ester; Butanoic acid, 3-chloro-2-oxo-, methyl ester; Acetoacetic acid, 3-chloro-, methyl ester
EINECS	Contact for details

Quality Control

Our Butanoic Acid, 3-Chloro-2-Oxo-, Methyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for use as a synthetic intermediate. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability.

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.