Description

Pentanoic Acid, 3-Chloro-2-Oxo-, Methyl Ester is a specialized organic ester with a reactive α-chloro ketone functional group. This compound is a valuable chemical intermediate and building block for synthesizing more complex molecules in advanced research and industrial chemistry. It is primarily needed by pharmaceutical and agrochemical manufacturers, as well as research institutions developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a chlorinated keto-ester backbone.
• Agrochemical Synthesis: Used as a building block for creating herbicides, fungicides, and other crop protection agents.
• Organic Synthesis Research: A versatile reagent in academic and industrial R&D labs for constructing heterocyclic compounds and other complex organic structures.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, dyes, and performance materials where its specific reactive sites are utilized.
• Chemical Derivatization: Acts as a starting material for further chemical modifications, such as hydrolysis, reduction, or nucleophilic substitution reactions.

Basic Information

Product Name	Pentanoic Acid, 3-Chloro-2-Oxo-, Methyl Ester
CAS No.	28942-53-2
Molecular Formula	C7H11ClO3
Molecular Weight	178.62 g/mol
Synonyms	Methyl 3-chloro-2-oxopentanoate; 3-Chloro-2-oxopentanoic acid methyl ester; Methyl 3-chloro-2-oxovalerate; 2-Oxo-3-chloropentanoic acid methyl ester; 3-Chloro-2-ketopentanoic acid methyl ester; α-Chloro-α-acetylbutyric acid methyl ester; Methyl α-chloroacetoacetate, butyl substituted
EINECS	Contact for details

Quality Control

Our Pentanoic Acid, 3-Chloro-2-Oxo-, Methyl Ester is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications and test results are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or an opaque secondary container.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/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.