Description

3-Chloro-But-2-Enoic Acid is a versatile halogenated carboxylic acid derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its reactive chloro and carboxylic acid functionalities make it a valuable building block for constructing complex molecular architectures. This compound is essential for research and development laboratories, as well as production facilities in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring halogenated side chains.
• Agrochemical Synthesis: Production of herbicides, fungicides, and plant growth regulators where the chlorinated butenoic acid moiety is incorporated.
• Polymer Chemistry: Monomer or co-monomer for specialty polymers, including functional acrylic resins and coatings.
• Organic Synthesis Building Block: Used in Michael additions, nucleophilic substitution reactions, and cyclization processes to create heterocyclic compounds.
• Ligand and Catalyst Development: Precursor for synthesizing chelating agents and organometallic catalysts.
• Flavor and Fragrance Industry: Intermediate in the synthesis of certain aroma chemicals and flavoring agents.

Basic Information

Product Name	3-Chloro-But-2-Enoic Acid
CAS No.	6213-90-7
Molecular Formula	C4H5ClO2
Molecular Weight	120.53 g/mol
Synonyms	3-Chlorobut-2-enoic Acid; 3-Chlorocrotonic Acid; (E)-3-Chlorobut-2-enoic Acid; β-Chlorocrotonic Acid; NSC 403697; 3-Chloro-2-butenoic Acid; trans-3-Chlorocrotonic Acid; 2-Butenoic acid, 3-chloro-
EINECS	228-289-7

Quality Control

Our 3-Chloro-But-2-Enoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment supports applications requiring high-purity intermediates for research and regulated production environments.

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 between 15°C and 25°C. Due to its nature as a strong acid/organic solvent, ensure containers are kept upright and sealed to prevent moisture ingress and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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