Description

4-Chloro-1,3-Butanediol is a versatile chlorinated diol building block of significant interest in fine chemical synthesis. Its bifunctional structure, featuring both a chloro and two hydroxyl groups, makes it a valuable intermediate for constructing more complex molecules. This compound is primarily sought after by research and development laboratories and industrial manufacturers in the pharmaceutical and agrochemical sectors.

Application

• Pharmaceutical Intermediate: Key starting material or synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a chlorinated butane backbone.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its reactive sites allow for further functionalization.
• Polymer Chemistry: Serves as a monomer or cross-linking agent in the production of specialty polymers, resins, and polyurethanes, imparting specific properties.
• Organic Synthesis Building Block: Employed in research for nucleophilic substitution reactions (via the chloro group) and esterification or etherification (via the hydroxyl groups).
• Ligand and Chelator Precursor: Useful for synthesizing novel ligands for catalysis or metal chelating agents in various industrial processes.

Basic Information

Product Name	4-Chloro-1,3-Butanediol
CAS No.	145873-44-5
Molecular Formula	C4H9ClO2
Molecular Weight	124.57 g/mol
Synonyms	1,3-Butanediol, 4-chloro-; 4-Chlorobutane-1,3-diol; 4-Chloro-1,3-dihydroxybutane; 4-Chlorobutane-1,3-diol; 4-Chloro-1,3-butanediol; 4-Chloro-1,3-butylene glycol; 4-Chloro-1,3-butandiol
EINECS	Contact for details

Quality Control

Our 4-Chloro-1,3-Butanediol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling to ensure high chemical purity and consistency. Certificates of Analysis (COA) documenting all test results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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