Description

(E)-1-Chlorobut-2-Ene is a versatile chlorinated alkene intermediate with significant utility in organic synthesis. Its primary value lies in its role as a reactive building block for constructing more complex molecules, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers engaged in fine chemical production, polymer modification, and the development of specialty materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of herbicides, pesticides, and plant growth regulators.
• Polymer & Resin Modification: Serves as a monomer or cross-linking agent to introduce specific properties into polymeric materials.
• Organic Synthesis Reagent: Employed in various name reactions, including coupling and addition reactions, to form carbon-carbon and carbon-heteroatom bonds.
• Flavor & Fragrance Industry: Acts as an intermediate for synthesizing specific aroma chemicals and flavor compounds.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic pathways and material science.

Basic Information

Product Name	(E)-1-Chlorobut-2-Ene
CAS No.	4894-61-5
Molecular Formula	C4H7Cl
Molecular Weight	90.55 g/mol
Synonyms	trans-1-Chloro-2-butene; (E)-1-Chloro-2-butene; (E)-2-Butenyl chloride; Crotyl chloride (trans-); trans-Crotyl chloride; 1-Chloro-2-butene (trans-); 2-Buten-1-yl chloride, (E)-; 1-Chloro-but-2-ene (E)
EINECS	225-500-1

Quality Control

Our (E)-1-Chlorobut-2-Ene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC and NMR analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles 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, well-ventilated area away from heat sources and incompatible materials such as strong bases and oxidizing agents. Due to its highly volatile nature, keep containers tightly sealed and handle in a fume hood. 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
Purity (GC)	≥ 98.0%
Isomeric Purity ((E)-isomer)	≥ 99.0%
Water Content (KF)	≤ 0.1%

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