Description

3-Chloro-But-2-En-Ol is a versatile chlorinated unsaturated alcohol that serves as a valuable synthetic intermediate in advanced organic chemistry. Its unique structure, featuring both a reactive chlorine atom and an allylic alcohol group, makes it a critical building block for constructing complex molecular architectures. This compound is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and specialty chemical sectors for applications ranging from medicinal chemistry to polymer science.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those requiring chlorinated or unsaturated side chains.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators, where its reactive sites allow for the introduction of specific biological activity.
• Specialty Chemical Building Block: Employed in the manufacture of fine chemicals, flavors, fragrances, and advanced materials due to its bifunctional reactivity.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent in the production of specialty polymers, coatings, and adhesives, imparting specific chemical resistance or physical properties.
• Organic Synthesis Research: A valuable reagent in academic and industrial laboratories for developing new synthetic methodologies, including coupling reactions and cyclization processes.

Basic Information

Product Name	3-Chloro-But-2-En-Ol
CAS No.	40605-42-3
Molecular Formula	C4H7ClO
Molecular Weight	106.55 g/mol
Synonyms	3-Chlorobut-2-en-1-ol; 1-Chloro-3-hydroxy-2-butene; 3-Chloro-2-buten-1-ol; 3-Chloro-but-2-ene-1-ol; (E/Z)-3-Chlorobut-2-en-1-ol; Chlorocrotyl Alcohol; 3-Chlorocrotyl Alcohol
EINECS	Contact for details

Quality Control

Our 3-Chloro-But-2-En-Ol is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each production lot undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to verify identity, potency, and impurity profiles. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, open flames, and incompatible materials such as strong oxidizing agents and bases. Due to its reactive nature, it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.10 - 1.15

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